Merge pull request #9328 from guggero/golang-min-version

docker+docs: update documentation around Golang minimum version

lnrpc/Dockerfile

@@ -1,3 +1,5 @@
+# If you change this please also update GO_VERSION in Makefile (then run
+# `make lint` to see where else it needs to be updated as well).
 FROM golang:1.22.6-bookworm
 
 RUN apt-get update && apt-get install -y \