fix(ci): resolve YAML syntax error on line 168 in hotfix workflow

Replaced multiline YAML string with heredoc approach to avoid quoting issues.

.github/workflows/hotfix-branch-creation.yml

@@ -162,24 +162,32 @@ jobs:
           if [ -f "$CHANGELOG_PATH" ]; then
             DATE=$(date +%Y-%m-%d)
             
-            # Create hotfix entry
-            HOTFIX_ENTRY="## [${HOTFIX_VERSION}] - ${DATE} - HOTFIX
+            # Create hotfix entry using cat with heredoc
+            cat > /tmp/hotfix_entry.md << 'EOF'
+## [${HOTFIX_VERSION}] - ${DATE} - HOTFIX
 
 ### Fixed
 - ${ISSUE}
 
 ---
 
-"
+EOF
             
-            # Insert after the first line (title) using a temp file
+            # Replace variables in the temp file
+            sed -i.bak "s/\${HOTFIX_VERSION}/${HOTFIX_VERSION}/g" /tmp/hotfix_entry.md
+            sed -i.bak "s/\${DATE}/${DATE}/g" /tmp/hotfix_entry.md
+            sed -i.bak "s/\${ISSUE}/${ISSUE}/g" /tmp/hotfix_entry.md
+            
+            # Insert after the first line (title)
             TITLE=$(head -n 1 "$CHANGELOG_PATH")
             BODY=$(tail -n +2 "$CHANGELOG_PATH")
             echo "$TITLE" > "$CHANGELOG_PATH"
             echo "" >> "$CHANGELOG_PATH"
-            echo "$HOTFIX_ENTRY" >> "$CHANGELOG_PATH"
+            cat /tmp/hotfix_entry.md >> "$CHANGELOG_PATH"
             echo "$BODY" >> "$CHANGELOG_PATH"
             
+            rm -f /tmp/hotfix_entry.md /tmp/hotfix_entry.md.bak
+            
             echo "✅ Added CHANGELOG entry for hotfix $HOTFIX_VERSION"
           else
             echo "⚠️ Warning: $CHANGELOG_PATH not found"