[misc] improve goreleaser with RC handling and update docker builds (#6438)

- introduce variables to avoid publishing latest docker tags and installers
- Refactor .goreleaser.yaml to simplify docker configurations and add environment-driven flags
- removed management debug containers (it was doing only log var)
- Stopped building arm v6 32bits in favor of v7 32 bits for services (not client)
- Add target argument to docker files

client/Dockerfile-rootless

@@ -4,7 +4,7 @@
 #   podman build -t localhost/netbird:latest -f client/Dockerfile --ignorefile .dockerignore-client .
 #   podman run --rm -it --cap-add={BPF,NET_ADMIN,NET_RAW} localhost/netbird:latest
 
-FROM alpine:3.22.0
+FROM alpine:3.24
 
 RUN apk add --no-cache \
       bash \
@@ -27,7 +27,7 @@ ENV \
     NB_ENTRYPOINT_SERVICE_TIMEOUT="30"
 
 ENTRYPOINT [ "/usr/local/bin/netbird-entrypoint.sh" ]
-
-ARG NETBIRD_BINARY=netbird
+ARG TARGETPLATFORM
+ARG NETBIRD_BINARY=$TARGETPLATFORM/netbird
 COPY client/netbird-entrypoint.sh /usr/local/bin/netbird-entrypoint.sh
 COPY "${NETBIRD_BINARY}"  /usr/local/bin/netbird