feat: add OCI maintainer labels

Dockerfile

@@ -15,6 +15,10 @@ RUN --mount=type=bind,rw,source=./src/,target=./src/ \
     uv build --wheel -o /wheels/
 
 FROM ${PYTHON}
+LABEL org.opencontainers.image.vendor="Dnomd343"
+LABEL org.opencontainers.image.authors="dnomd343@gmail.com"
+LABEL org.opencontainers.image.source="https://github.com/dnomd343/syncplay-docker.git"
+
 RUN sh -c '[ $(apk info -e libgcc) ] || apk add --no-cache libgcc'
 RUN --mount=type=cache,ro,from=builder,source=/wheels/,target=/wheels/ \
     PYTHONDONTWRITEBYTECODE=1 pip install --no-index --no-compile --no-cache-dir --find-links=/wheels/ /wheels/*.whl