fix(dockerfile): update container infos

Author: deeagle

Dockerfile

@@ -1,5 +1,8 @@
 FROM alpine:3
-LABEL maintainer="deeagle <code@deeagle.de>"
-LABEL about="Container to execute file checks."
+LABEL org.opencontainers.image.authors="Martin Kock <code@deeagle.de>" \
+      org.opencontainers.image.url="https://github.com/deeagle/filecheck" \
+      org.opencontainers.image.title="File-Control tools." \
+      org.opencontainers.image.description="The tools provide file checks like UTF8 and Linefeed validation in an alpine container for CI." \
+      org.opencontainers.image.vendor="deeagle.de"
 
 RUN apk --no-cache add file git moreutils