CI: Fixes for various main steps (#74768)

Fixes for various main steps

scripts/drone/steps/lib.star

@@ -633,8 +633,8 @@ def frontend_metrics_step(trigger = None):
         },
         "failure": "ignore",
         "commands": [
-            "apk add --update bash",
-            "./scripts/ci-frontend-metrics.sh | ./bin/build publish-metrics $${GRAFANA_MISC_STATS_API_KEY}",
+            "apk add --update bash grep",
+            "./scripts/ci-frontend-metrics.sh | ./bin/build publish-metrics $$GRAFANA_MISC_STATS_API_KEY",
         ],
     }
     if trigger:

scripts/drone/steps/rgm.star

@@ -3,6 +3,11 @@ Individual steps that use 'grafana-build' to replace existing individual steps.
 These aren't used in releases.
 """
 
+load(
+    "scripts/drone/variables.star",
+    "golang_version",
+)
+
 # rgm_package_step will create a tar.gz for use in e2e tests or other PR testing related activities..
 def rgm_package_step(distros = "linux/amd64,linux/arm64", file = "packages.txt"):
     return {
@@ -12,6 +17,7 @@ def rgm_package_step(distros = "linux/amd64,linux/arm64", file = "packages.txt")
         "depends_on": ["yarn-install"],
         "commands": [
             "/src/grafana-build package --distro={} ".format(distros) +
+            "--go-version={} ".format(golang_version) +
             "--yarn-cache=$$YARN_CACHE_FOLDER " +
             "--build-id=$$DRONE_BUILD_NUMBER " +
             "--grafana-dir=$$PWD > {}".format(file),
@@ -28,7 +34,9 @@ def rgm_build_backend_step(distros = "linux/amd64,linux/arm64"):
         "image": "grafana/grafana-build:main",
         "pull": "always",
         "commands": [
-            "/src/grafana-build build --distro={} --grafana-dir=$$PWD".format(distros),
+            "/src/grafana-build build " +
+            "--go-version={} ".format(golang_version) +
+            "--distro={} --grafana-dir=$$PWD".format(distros),
         ],
         "volumes": [{"name": "docker", "path": "/var/run/docker.sock"}],
     }