updatecli: use golang-crossbuild repository (elastic#35341)

.ci/bump-golang.yml

@@ -26,9 +26,7 @@ actions:
         - dependencies
         - backport-skip
       description: |
-        It requires the version to be bumped first in golang-crossbuild project, then a new release will be added to:
-        https://github.com/elastic/golang-crossbuild/releases/tag/v{{ source "latestGoVersion" }}.
-        Otherwise it will fail until the docker images are available.
+        Generated automatically with {{ requiredEnv "JOB_URL" }}
 
 sources:
   minor:
@@ -47,15 +45,15 @@ sources:
     dependson:
       - minor
     transformers:
-      - trimprefix: go
+      - trimprefix: v
     spec:
-      owner: golang
-      repository: go
+      owner: elastic
+      repository: golang-crossbuild
       token: '{{ requiredEnv "GITHUB_TOKEN" }}'
       username: '{{ requiredEnv "GIT_USER" }}'
       versionfilter:
         kind: regex
-        pattern: go1\.{{ source "minor" }}\.(\d*)$
+        pattern: v1\.{{ source "minor" }}\.(\d*)$
 
   gomod:
     dependson:

.github/workflows/bump-golang.yml

@@ -8,6 +8,9 @@ on:
 permissions:
   contents: read
 
+env:
+  JOB_URL: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
+
 jobs:
   bump:
     runs-on: ubuntu-latest