chore: Update dependency buf to v1.59.0 (#441)

Co-authored-by: grafanarenovatebot[bot] <146220760+grafanarenovatebot[bot]@users.noreply.github.com>

Author: grafanarenovatebot[bot]

versions.yaml

@@ -23,7 +23,7 @@ lefthook:
   version: v1.13.6 # renovate: datasource=github-releases depName=lefthook packageName=evilmartians/lefthook
 
 buf:
-  version: v1.57.2 # renovate: datasource=github-releases depName=buf packageName=bufbuild/buf
+  version: v1.59.0 # renovate: datasource=github-releases depName=buf packageName=bufbuild/buf
 
 dockerfile_json:
   version: v1.2.2 # renovate: datasource=github-releases depName=dockerfile-json packageName=keilerkonzept/dockerfile-json