fixup! fixup! Quote variable contents in update checker

Author: pganssle

.github/workflows/check-for-updates.yml

@@ -87,9 +87,12 @@ jobs:
           # Extract TZDATA_NEWS from file content
           TZDATA_NEWS=$(cat "$news_files")
 
-          echo "$GITHUB_ENV"
           echo "TZDATA_VERSION='$TZDATA_VERSION'" >> $GITHUB_ENV
-          echo "TZDATA_NEWS='$TZDATA_NEWS'" >> $GITHUB_ENV
+          {
+            echo 'TZDATA_NEWS<<EOF'
+            echo $TZDATA_NEWS
+            echo EOF
+          } >> "$GITHUB_ENV"
 
       - name: Commit changes
         id: commit_changes