feat: add org.opencontainers.image.source label to Dockerfile

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Author: DerRockWolf

7.2/alpine/Dockerfile

@@ -136,6 +136,8 @@ FROM base
 
 ENV VALKEY_VERSION {{ .version }}
 
+LABEL org.opencontainers.image.source="https://github.com/valkey-io/valkey"
+
 # add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added
 {{ if env.variant == "alpine" then ( -}}
 RUN set -eux; \