Update .github/workflows/create-tag-on-merge.yml

Co-authored-by: gitstream-cm[bot] <111687743+gitstream-cm[bot]@users.noreply.github.com>

Author: MishaKav

.github/workflows/create-tag-on-merge.yml

@@ -44,7 +44,7 @@ jobs:
               // Extract only the Purpose section from PR description
               let releaseNote = 'No description provided';
               if (pr.body) {
-                const purposeMatch = pr.body.match(/Purpose:\s*(.+?)(?:\n|Main changes:|$)/s);
+                const purposeMatch = pr.body.match(/Purpose:\s*([^\n]+)/);
 
                 if (purposeMatch) {
                   releaseNote = purposeMatch[1].trim();