Add release trigger workflow

.github/CODEOWNERS

@@ -1,4 +1,5 @@
 .github/CODEOWNERS*                                        @DataDog/agent-integrations
+.github/workflows/*                                        @DataDog/agent-integrations
 
 # Documentation
 **/README.md                             @DataDog/documentation

.github/workflows/release-trigger.yml

@@ -0,0 +1,72 @@
+name: Trigger Wheel Builds
+
+# Thin wrapper — all tagging and dispatch logic lives in integrations-core's
+# reusable release-dispatch.yml workflow.
+
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - "*/CHANGELOG.md"
+      - "*/datadog_checks/*/__about__.py"
+  workflow_dispatch:
+    inputs:
+      packages:
+        description: >-
+          Packages to release. JSON array (e.g. '["postgres","datadog_checks_base"]'),
+          'all' to release every Python package in the repo, or omit to auto-detect from new tags.
+        required: false
+        type: string
+      source-repo-ref:
+        description: "Commit SHA or ref to build from"
+        required: true
+        type: string
+      target:
+        description: "Target environment (dev or prod)"
+        required: false
+        type: choice
+        options:
+          - dev
+          - prod
+        default: dev
+      dry-run:
+        description: "Print what would be released without pushing tags or starting builds"
+        required: false
+        type: boolean
+        default: false
+      ddev-version:
+        description: "ddev version, pinned by default."
+        required: false
+        type: string
+
+jobs:
+  context:
+    name: Detect release context
+    runs-on: ubuntu-latest
+    outputs:
+      is-stable-release: ${{ steps.detect.outputs.is-stable-release }}
+    steps:
+      - id: detect
+        run: |
+          if [[ "$GITHUB_REF" == refs/heads/master ]]; then
+            echo "is-stable-release=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "is-stable-release=false" >> "$GITHUB_OUTPUT"
+          fi
+
+  dispatch:
+    name: Release
+    needs: context
+    uses: DataDog/integrations-core/.github/workflows/release-dispatch.yml@master
+    with:
+      source-repo: integrations-extras
+      packages: ${{ inputs.packages || '' }}
+      source-repo-ref: ${{ inputs.source-repo-ref || github.sha }}
+      target: ${{ inputs.target || 'dev' }}
+      dry-run: ${{ inputs.dry-run || false }}
+      ddev-version: ${{ inputs.ddev-version || '' }}
+      is-stable-release: ${{ needs.context.outputs.is-stable-release }}
+    permissions:
+      id-token: write
+      contents: write