[v8.5.x] Adding .github/workflows/create-security-patch-from-security-mirror.yml (#75997)

Adding .github/workflows/create-security-patch-from-security-mirror.yml (#75850)

* Adding .github/workflows/create-security-patch-from-security-mirror.yml

* Added .github/workflows/create-security-patch-from-security-mirror.yml to CODEOWNERS

(cherry picked from commit 6842cc63ec)

.github/CODEOWNERS

@@ -34,6 +34,7 @@ go.sum @grafana/backend-platform
 /Makefile @grafana/grafana-delivery
 /scripts/build/ @grafana/grafana-delivery
 /scripts/list-release-artifacts.sh @grafana/grafana-delivery
+/.github/workflows/create-security-patch-from-security-mirror.yml @grafana/grafana-delivery
 
 # Cloud Datasources backend code
 /pkg/tsdb/cloudwatch @grafana/cloud-datasources
@@ -170,3 +171,4 @@ lerna.json @grafana/frontend-ops
 
 # Cloud middleware
 /grafana-mixin/ @grafana/hosted-grafana-team
+

.github/workflows/create-security-patch-from-security-mirror.yml

@@ -0,0 +1,28 @@
+# Owned by grafana-delivery-squad
+# Intended to be dropped into the base repo (Ex: grafana/grafana) for use in the security mirror. 
+name: Create security patch
+run-name: create-security-patch
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+    branches:
+      - "main"
+      - "v*.*.*"
+
+# This is run before the pull request has been merged, so we'll run against the src branch
+jobs:
+  trigger_downstream_create_security_patch:
+    concurrency: create-patch-${{ github.ref_name }}
+    uses: grafana/security-patch-actions/.github/workflows/create-patch.yml@main
+    if: github.repository == 'grafana/grafana-security-mirror' 
+    with:
+      repo: "${{ github.repository }}"
+      src_ref: "${{ github.head_ref }}" # this is the source branch name, Ex: "feature/newthing"
+      patch_ref: "${{ github.base_ref }}" # this is the target branch name, Ex: "main"
+      patch_repo: "grafana/grafana-security-patches"
+      patch_prefix: "${{ github.event.pull_request.number }}"
+    secrets: inherit
+