Update Release Drafter and CodeQL workflows: add release notes template and Java 21 setup

.github/release-drafter.yml

@@ -1,6 +1,13 @@
-# Config for release-drafter: how to categorize PRs in draft release notes
+# Config for release-drafter v6: categorizes PRs in draft release notes
 # https://github.com/release-drafter/release-drafter
 
+template: |
+  ## What's Changed
+
+  $CHANGES
+
+  **Full Changelog**: https://github.com/jakubbbdev/terminal-ui/compare/$PREVIOUS_TAG...v$RESOLVED_VERSION
+
 name-template: 'v$RESOLVED_VERSION'
 tag-template: 'v$RESOLVED_VERSION'
 

.github/workflows/codeql.yml

@@ -21,6 +21,13 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Set up JDK 21
+        uses: actions/setup-java@v4
+        with:
+          distribution: temurin
+          java-version: 21
+          cache: gradle
+
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v3
         with: