[#525] Define create_release_pr workflow to automate Release PR creating

.github/workflows/config/changelog-release.json

@@ -0,0 +1,35 @@
+{
+    "categories": [
+        {
+            "title": "## ✨ Features",
+            "labels": [
+                "type : feature"
+            ],
+            "empty_content": "N/A"
+        },
+        {
+            "title": "## 🐛 Bug fixes",
+            "labels": [
+                "type : bug"
+            ],
+            "empty_content": "N/A"
+        },
+        {
+            "title": "## 🧹 Chores",
+            "labels": [
+                "type : chore"
+            ],
+            "empty_content": "N/A"
+        },
+        {
+            "title": "## Others",
+            "exclude_labels": [
+                "type : feature",
+                "type : bug",
+                "type : chore",
+                "type : release"
+            ]
+        }
+    ],
+    "max_pull_requests": 200
+}

.github/workflows/create_release_pr.yml

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+name: Create the Release pull request
+
+on:
+  workflow_dispatch:
+
+jobs:
+  create_release_pr:
+    name: Create the Release pull request
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: Checkout the latest code
+        uses: actions/checkout@v3
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Read the current version
+        id: version
+        uses: christian-draeger/[email protected]
+        with:
+          path: "version.properties"
+          properties: "templateScriptVersion"
+
+      - name: Find HEAD commit
+        id: head
+        run: echo "sha=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
+
+      - name: Build changelog
+        id: changelog
+        uses: mikepenz/release-changelog-builder-action@v4
+        with:
+          configuration: ".github/workflows/config/changelog-release.json"
+          # Listing PRs from the last tag to the HEAD commit
+          toTag: ${{ steps.head.outputs.sha }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Create the Release pull request
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          VERSION=${{ steps.version.outputs.templateScriptVersion }}
+          BASE_BRANCH=main
+          HEAD_BRANCH=release/$VERSION
+
+          # Fetch milestone info
+          gh extension install valeriobelli/gh-milestone
+          MILESTONE=$VERSION
+          MILESTONE_URL=$(gh milestone list --query $MILESTONE --json url --jq ".[0].url")
+
+          # Create the release branch
+          git checkout -b $HEAD_BRANCH
+          git push origin $HEAD_BRANCH
+
+          # Create the pull request
+          gh pr create \
+            --base $BASE_BRANCH \
+            --head $HEAD_BRANCH \
+            --assignee "bot-nimble" \
+            --title "Release - $VERSION" \
+            --label 'type : release' \
+            --milestone $MILESTONE \
+            --body "$MILESTONE_URL
+
+            ${{ steps.changelog.outputs.changelog }}" \