Bump acorn from 6.4.0 to 6.4.1

Bumps [acorn](https://github.com/acornjs/acorn) from 6.4.0 to 6.4.1.
- [Release notes](https://github.com/acornjs/acorn/releases)
- [Commits](https://github.com/acornjs/acorn/compare/6.4.0...6.4.1)

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -1405,8 +1405,8 @@
         },
         "acorn": {
           "version": "7.1.1",
-          "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-7.1.1.tgz",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-7.1.1.tgz",
-          "integrity": "sha1-41Zo3gtALzWd5RXFSCoaufiaab8=",
+          "integrity": "sha512-add7dgA5ppRPxCFJoAGfMDi7PIBXq1RtGo7BhbLaxwrXPOmw8gq48Y9ozT01hUKy9byMjlR20EJhu5zlkErEkg==",
           "dev": true
         },
         "cacache": {
@@ -1837,9 +1837,9 @@
       }
     },
     "acorn": {
-      "version": "6.4.0",
+      "version": "6.4.1",
-      "resolved": "https://registry.npm.taobao.org/acorn/download/acorn-6.4.0.tgz",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
-      "integrity": "sha1-tlnS/7r6JLr12xzbsslKmD7NJ4Q=",
+      "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
       "dev": true
     },
     "acorn-walk": {
@@ -2398,7 +2398,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -3127,7 +3127,7 @@
     },
     "color-name": {
       "version": "1.1.3",
-      "resolved": "http://registry.npm.taobao.org/color-name/download/color-name-1.1.3.tgz",
+      "resolved": "https://registry.npm.taobao.org/color-name/download/color-name-1.1.3.tgz",
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
@@ -3206,7 +3206,7 @@
         },
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -3700,7 +3700,7 @@
     },
     "debug": {
       "version": "4.1.1",
-      "resolved": "http://registry.npm.taobao.org/debug/download/debug-4.1.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/debug/download/debug-4.1.1.tgz",
       "integrity": "sha1-O3ImAlUQnGtYnO4FDx1RYTlmR5E=",
       "requires": {
         "ms": "^2.1.1"
@@ -4068,7 +4068,7 @@
     },
     "domelementtype": {
       "version": "1.3.1",
-      "resolved": "http://registry.npm.taobao.org/domelementtype/download/domelementtype-1.3.1.tgz",
+      "resolved": "https://registry.npm.taobao.org/domelementtype/download/domelementtype-1.3.1.tgz",
       "integrity": "sha1-0EjESzew0Qp/Kj1f7j9DM9eQSB8=",
       "dev": true
     },
@@ -4442,7 +4442,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -4515,7 +4515,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -4749,7 +4749,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -4805,7 +4805,7 @@
       "dependencies": {
         "debug": {
           "version": "3.2.6",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-3.2.6.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-3.2.6.tgz",
           "integrity": "sha1-6D0X3hbYp++3cX7b5fsQE17uYps=",
           "dev": true,
           "requires": {
@@ -9289,7 +9289,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -9350,7 +9350,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -9520,7 +9520,7 @@
       "dependencies": {
         "debug": {
           "version": "2.6.9",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-2.6.9.tgz",
           "integrity": "sha1-XRKFFd8TT/Mn6QpMk/Tgd6U2NB8=",
           "dev": true,
           "requires": {
@@ -9650,7 +9650,7 @@
       "dependencies": {
         "debug": {
           "version": "3.2.6",
-          "resolved": "http://registry.npm.taobao.org/debug/download/debug-3.2.6.tgz",
+          "resolved": "https://registry.npm.taobao.org/debug/download/debug-3.2.6.tgz",
           "integrity": "sha1-6D0X3hbYp++3cX7b5fsQE17uYps=",
           "dev": true,
           "requires": {