OPCT-192: Automatically create changelog based on the tags (#53)

https://issues.redhat.com/browse/OPCT-192

The goal of this card is to automatically create the changelog based on
the commit standards.

The labels should be defined to fit OPCT project. The existing is
suggested, it would be nice to be adapted for the same used by OCP
projects

.github/workflows/changelog-configuration.json

@@ -0,0 +1,73 @@
+{
+  "categories": [
+    {
+      "title": "## 🚀 Features",
+      "labels": ["feature", "kind/feature"]
+    },
+    {
+      "title": "## 🛰 Design / API Change",
+      "labels": ["design", "kind/design", "kind/api-change"]
+    },
+    {
+      "title": "## 🐛 Fixes",
+      "labels": ["fix", "kind/bug"]
+    },
+    {
+      "title": "## 🧪 Tests",
+      "labels": ["test", "kind/flake", "kind/failing-test"]
+    },
+    {
+      "title": "## ⛏ Cleanup",
+      "labels": ["cleanup", "kind/cleanup"]
+    },
+    {
+        "title": "## 📦 Dependencies",
+        "labels": ["dependencies", "kind/dependency-change"]
+    },
+    {
+        "title": "## 📜 Documentation",
+        "labels": ["docs", "documentation", "kind/documentation"]
+    },
+    {
+      "title": "## 💬 Other",
+      "labels": ["other"]
+    }
+  ],
+  "ignore_labels": [
+    "ignore"
+  ],
+  "sort": {
+    "order": "ASC",
+    "on_property": "mergedAt"
+  },
+  "template": "${{CHANGELOG}}\n\n<details>\n<summary>Uncategorized</summary>\n\n${{UNCATEGORIZED}}\n</details>",
+  "pr_template": "- ${{TITLE}}\n   - PR: #${{NUMBER}}",
+  "empty_template": "- no changes",
+  "label_extractor": [
+    {
+      "pattern": "(.) (.+)",
+      "target": "$1",
+      "flags": "gu"
+    },
+    {
+      "pattern": "\\[Issue\\]",
+      "on_property": "title",
+      "method": "match"
+    }
+  ],
+  "duplicate_filter": {
+    "pattern": "\\[ABC-....\\]",
+    "on_property": "title",
+    "method": "match"
+  },
+  "transformers": [
+    {
+      "pattern": "[\\-\\*] (\\[(...|TEST|CI|SKIP)\\])( )?(.+?)\n(.+?[\\-\\*] )(.+)",
+      "target": "- $4\n  - $6"
+    }
+  ],
+  "trim_values": false,
+  "max_tags_to_fetch": 200,
+  "max_pull_requests": 200,
+  "max_back_track_time_days": 365
+}

.github/workflows/release.yaml

@@ -32,13 +32,26 @@ jobs:
         env:
           RELEASE_TAG: ${{ github.ref_name }}
 
-      - name: Release
+      # https://github.com/mikepenz/release-changelog-builder-action#configuration
+      - name: Build Changelog
+        id: github_release
+        uses: mikepenz/release-changelog-builder-action@v3.7.0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          configuration: ".github/workflows/changelog-configuration.json"
+
+      # https://github.com/softprops/action-gh-release
+      - name: Create Release
         uses: softprops/action-gh-release@v0.1.15
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           files: |
             openshift-provider-cert*
+          body: |
+            ## Changelog
+            ${{steps.github_release.outputs.changelog}}
 
       - name: Build Container and Release to Quay
         env: