fix annotations

Dockerfile

@@ -1,11 +1,5 @@
 FROM docker.io/library/alpine:3
 
-LABEL org.opencontainers.image.title=jswank/alpine-cli \
-      org.opencontainers.image.description="A minimal image for running Linux CLI utilities" \
-      org.opencontainers.image.url=https://git.sr.ht/~jswank/alpine-cli \
-      org.opencontainers.image.authors="Jason Swank" \
-      org.opencontainers.image.licenses=MIT
-
 RUN apk --no-cache update
 
 RUN apk -U --no-cache add \