Switch to GitHub API for release notes generation

Replaces the mikepenz/release-changelog-builder-action with the GitHub API via actions/github-script to generate release notes. Adds a step to fetch the previous tag for more accurate changelog generation.

Author: JohnDuprey

.github/workflows/publish_release.yml

@@ -48,11 +48,36 @@ jobs:
             echo "tag_exists=false" >> $GITHUB_ENV
           fi
 
+      # Get Previous Tag
+      - name: Get Previous Tag
+        id: previous_tag
+        if: env.tag_exists == 'false'
+        run: |
+          PREV_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
+          echo "previous_tag=$PREV_TAG" >> $GITHUB_OUTPUT
+          echo "Previous tag: $PREV_TAG"
+
       # Generate Release Notes
       - name: Generate Release Notes
         id: changelog
         if: env.tag_exists == 'false'
-        uses: mikepenz/release-changelog-builder-action@v5.0.0
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const params = {
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              tag_name: '${{ steps.get_version.outputs.version }}',
+              target_commitish: context.sha
+            };
+
+            const previousTag = '${{ steps.previous_tag.outputs.previous_tag }}';
+            if (previousTag) {
+              params.previous_tag_name = previousTag;
+            }
+
+            const { data } = await github.rest.repos.generateReleaseNotes(params);
+            core.setOutput('changelog', data.body);
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
@@ -75,10 +100,6 @@ jobs:
         if: env.tag_exists == 'false'
         run: |
           mkdir -p src/releases
-          zip -r src/releases/release_${{ steps.get_version.outputs.version }}.zip . \
-            --exclude "./src/releases/*" \
-            --exclude ".*" \
-            --exclude ".*/**"
           zip -r src/releases/latest.zip . \
             --exclude "./src/releases/*" \
             --exclude ".*" \