fix: bad var name

.github/workflows/release-prepare-hotfix.yml

@@ -42,7 +42,7 @@ jobs:
         id: format-app-tag
         run: |
           if [ ${{ github.event.inputs.tag_version }} = 'latest' ]; then
-            ref="main"
+            main_ref="main"
           else
             if [ "${{ github.event.inputs.application }}" = "LLM" ]; then
               formatted_app="live-mobile"
@@ -52,10 +52,10 @@ jobs:
               echo "Unknown application"
               exit 1
             fi
-            ref="${formatted_app}@${{ github.event.inputs.tag_version }}"
+            main_ref="${formatted_app}@${{ github.event.inputs.tag_version }}"
           fi
 
-          echo "main_ref=$ref" >> $GITHUB_ENV
+          echo "main_ref=$main_ref" >> $GITHUB_ENV
           echo "Formatted application and tag version: $main_ref"
 
       - name: Checkout repo (main branch)
@@ -64,12 +64,6 @@ jobs:
           ref: ${{ env.main_ref }}
           token: ${{ steps.generate-token.outputs.token }}
 
-      - name: Checkout Repo (develop branch)
-        uses: actions/checkout@v4
-        with:
-          ref: develop
-          fetch-depth: 1
-
       - name: Setup git user
         uses: ./tools/actions/composites/setup-git-user