Update action.yml

Author: jackton1

action.yml

@@ -19,15 +19,15 @@ runs:
   steps:
     - id: migration-fixer
       run: |
-        BRANCH="${{ inputs.default-branch }}"
+        TARGET_BRANCH="${{ inputs.default-branch }}"
 
         EXTRA_ARGS="--fix"
 
         if [[ '${{ inputs.force-update }}' == 'true'  ]]; then
           EXTRA_ARGS+=" -f"
         fi
 
-        python ${{ inputs.managepy-path }} makemigrations $EXTRA_ARGS -b "${BRANCH/refs\/heads\//}"
+        python ${{ inputs.managepy-path }} makemigrations $EXTRA_ARGS -b "${TARGET_BRANCH/refs\/heads\//}"
       shell: bash
 branding:
   icon: check