BUILD-8389 Migrate from Cirrus CI to GitHub Actions

.github/workflows/build.yml

@@ -0,0 +1,46 @@
+name: Build
+on:
+  push:
+    branches:
+      - master
+      - branch-*
+      - dogfood-*
+  pull_request:
+  merge_group:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 1 * * *' # nightly build at 1AM UTC
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: github-ubuntu-latest-s  # Public repo with auth actions
+    name: Build
+    permissions:
+      id-token: write  # Required for Vault OIDC authentication
+      contents: write  # Required for repository access and tagging
+    steps:
+      - uses: actions/checkout@08eba0b27e820071cde6df949e0beb9ba4906955 # v4.3.0
+      - uses: jdx/mise-action@c37c93293d6b742fc901e1406b8f764f6fb19dac # v2.4.4
+        with:
+          version: 2025.7.12
+      - uses: SonarSource/ci-github-actions/build-maven@v1
+        with:
+          deploy-pull-request: true
+          artifactory-reader-role: private-reader
+          artifactory-deployer-role: qa-deployer
+
+  promote:
+    needs: [build]
+    runs-on: github-ubuntu-latest-s  # Public repo with auth actions
+    name: Promote
+    permissions:
+      id-token: write
+      contents: write
+    steps:
+      - uses: SonarSource/ci-github-actions/promote@v1
+        with:
+          promote-pull-request: true

.github/workflows/pr-cleanup.yml

@@ -0,0 +1,11 @@
+name: Cleanup PR Resources
+on:
+  pull_request:
+    types: [closed]
+jobs:
+  cleanup:
+    runs-on: github-ubuntu-latest-s
+    permissions:
+      actions: write
+    steps:
+      - uses: SonarSource/ci-github-actions/pr_cleanup@v1

mise.toml

@@ -0,0 +1,3 @@
+[tools]
+java = "17.0"
+maven = "3.9"