ci: Add release workflow

Author: gchtr

.github/workflows/release.yml

@@ -0,0 +1,10 @@
+on:
+  push:
+    branches:
+      - main
+
+name: CI
+
+jobs:
+  release:
+    uses: mindkomm/workflows/.github/workflows/release.yml@main

.release-please-manifest.json

@@ -0,0 +1,3 @@
+{
+  ".": "2.5.6"
+}

release-please-config.json

@@ -0,0 +1,10 @@
+{
+  "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
+  "release-type": "php",
+  "pull-request-header": "Release-please has created a release",
+  "packages": {
+    ".": {
+      "changelog-path": "CHANGELOG.md"
+    }
+  }
+}