update auto_release workflow

.github/workflows/auto_release.yml

@@ -77,26 +77,19 @@ jobs:
           LAST_COMMIT_FOR_TAG=$(git rev-list -n 1 refs/tags/$LAST_TAG)
           COMMIT_RANGE="${LAST_COMMIT_FOR_TAG}..HEAD"
         fi
-
-        MESSAGES+="Seafile version: $SEAFILE_VERSION\n"
-        MESSAGES+="Image build version: $NEXT_BUILD\n"
-        MESSAGES+="Changelog:\n"
         
         for commit in $(git log --pretty=format:'%H' $COMMIT_RANGE); do
           if git diff-tree --no-commit-id --name-only -r $commit | grep "^$FOLDER_CHANGED/"; then
             MESSAGE=$(git log --format=%B -n 1 $commit)
-            MESSAGES+="- $commit: $MESSAGE\n"
+            MESSAGES="$MESSAGES- $commit: $MESSAGE\n"
           fi
         done
 
-        echo "MESSAGES=$MESSAGES" >> $GITHUB_ENV
-        echo -e "MESSAGES=$MESSAGES"
-      shell: /usr/bin/bash -e {0}
-      env:
-        SEAFILE_VERSION: ${{ env.SEAFILE_VERSION }}
-        FOLDER_CHANGED: ${{ env.FOLDER_CHANGED }}
-        NEXT_BUILD: ${{ env.NEXT_BUILD }}
-        LAST_TAG: ${{ env.LAST_TAG }}
+        MESSAGES="Seafile version: $SEAFILE_VERSION\nImage build version: $NEXT_BUILD\nChangelog:\n$MESSAGES"
+        
+        echo "MESSAGES<<EOF" >> $GITHUB_ENV
+        echo "$MESSAGES" >> $GITHUB_ENV
+        echo "EOF" >> $GITHUB_ENV
 
     - name: Create Release
       if: env.FOLDER_CHANGED != '' && env.SEAFILE_VERSION != ''