Removed old GitHub action labels

Dockerfile

@@ -1,14 +1,7 @@
 FROM jdkato/vale
 RUN apk add --no-cache bash git jq python3 curl && pip3 install requests
-LABEL "com.github.actions.name"="vale-lint"
-LABEL "com.github.actions.description"="Vale - linter for prose "
-LABEL "com.github.actions.icon"="check-circle"
-LABEL "com.github.actions.color"="blue"
-LABEL "repository"="https://github.com/gaurav-nelson/github-action-vale-lint.git"
-LABEL "homepage"="https://github.com/gaurav-nelson/github-action-vale-lint"
-LABEL "maintainer"="Gaurav Nelson"
 ADD entrypoint.sh /entrypoint.sh
 COPY /post_message.py /post_message.py
 RUN chmod u+x /entrypoint.sh && \
 chmod u+x /post_message.py
-ENTRYPOINT ["/entrypoint.sh"]
+ENTRYPOINT ["/entrypoint.sh"]