fix wrong variable name

Author: SciLor

.github/workflows/build_commit_web.yml

@@ -95,8 +95,8 @@ jobs:
           fi
 
       - name: Get Last Commit Hash
-        id: get_commit_hash
-        run: echo "commit_hash=$(git rev-parse HEAD)" >> $GITHUB_ENV
+        id: get_tcw_commit_hash
+        run: echo "tcw_commit_hash=$(git rev-parse HEAD)" >> $GITHUB_ENV
 
       - name: Wait for a few seconds # to avoid missing commit in followup steps
         run: sleep 10