ci: add release management with release please

Uses release please to manage the release process.

Also adds a PR check workflow to lint the PR title using conventional
commits.

Author: jkongie

.github/workflows/pr-checks.yml

@@ -0,0 +1,19 @@
+name: Pull Request Checks
+
+on:
+  pull_request:
+    branches: [main]
+    types: [opened, synchronize, reopened, edited]
+
+permissions:
+  contents: read
+  pull-requests: read
+
+jobs:
+  lint-pr-title:
+    name: Lint PR title (Conventional Commits)
+    runs-on: ubuntu-latest
+    steps:
+      - uses: amannn/action-semantic-pull-request@e32d7e603df1aa1ba07e981f2a23455dee596825 # v5
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/release-please.yml

@@ -0,0 +1,30 @@
+name: release-please
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+  pull-requests: write
+  id-token: write
+
+jobs:
+  release-please:
+    name: Release Please
+    runs-on: ubuntu-latest
+    steps:
+      - name: Issue GitHub Token
+        id: issue-github-token
+        uses: smartcontractkit/.github/actions/setup-github-token@setup-github-token/v1
+        with:
+          aws-role-arn: ${{ secrets.GATI_AWS_ROLE_CLD_CHANGESETS }}
+          aws-lambda-url: ${{ secrets.GATI_LAMBDA_OPERATIONS_PLATFORM_URL }}
+          aws-region: ${{ secrets.GATI_AWS_REGION }}
+
+      - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4.4.0
+        with:
+          # TODO: create a RELEASE_PLEASE_TOKEN secret with repo + PR scopes,
+          # or use a GATI Token in order to run CI tests automatically on the PR branch
+          token: ${{ secrets.GITHUB_TOKEN }}

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "0.0.1"
+}

release-please-config.json

@@ -0,0 +1,22 @@
+{
+  "packages": {
+    ".": {
+      "release-type": "go",
+      "package-name": "cld-changesets",
+      "bump-minor-pre-major": true
+    }
+  },
+  "changelog-sections": [
+    { "type": "build", "section": "Builds", "hidden": true },
+    { "type": "chore", "section": "Miscellaneous", "hidden": true },
+    { "type": "ci", "section": "Continuous Integrations", "hidden": true },
+    { "type": "docs", "section": "Documentation", "hidden": true },
+    { "type": "feat", "section": "Features" },
+    { "type": "fix", "section": "Bug Fixes" },
+    { "type": "perf", "section": "Performance Improvements", "bump": "patch" },
+    { "type": "refactor", "section": "Code Refactoring", "hidden": true },
+    { "type": "revert", "section": "Reverts", "bump": "patch" },
+    { "type": "style", "section": "Styles", "hidden": true },
+    { "type": "test", "section": "Tests", "hidden": true }
+  ]
+}