feat(cd): add release please setup (#71)

Author: matoous

.github/workflows/ci.yaml

@@ -48,3 +48,19 @@ jobs:
 
       - name: Run tests
         run: composer test
+
+  release-please:
+    name: Prepare release
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/master'
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
+
+      - uses: googleapis/release-please-action@16a9c90856f42705d54a6fda1823352bdc62cf38 # v4.4.0
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          target-branch: ${{ github.ref_name }}

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+	".": "1.3.0"
+}

release-please-config.json

@@ -0,0 +1,24 @@
+{
+	"$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+	"include-component-in-tag": false,
+	"include-v-in-tag": true,
+	"pull-request-header": "Automated sumup-ecom-php-sdk release",
+	"pull-request-title-pattern": "release: ${version}",
+	"extra-label": "release",
+	"draft": true,
+	"bump-minor-pre-major": true,
+	"bump-patch-for-minor-pre-major": true,
+	"packages": {
+		".": {
+			"release-type": "php",
+			"extra-files": [
+				"src/SumUp/Version.php",
+				{
+					"type": "json",
+					"path": "composer.json",
+					"jsonpath": "$.version"
+				}
+			]
+		}
+	}
+}