Update build_deploy.yml

Author: satra

.github/workflows/build_deploy.yml

@@ -32,8 +32,7 @@ jobs:
     - name: Get latest commit hash from reproschema-ui
       run: |
         LATEST_HASH=$(curl -s https://api.github.com/repos/ReproNim/reproschema-ui/commits/master | jq -r '.sha')
-        echo "CHECKSUM=$LATEST_HASH" >> $GITHUB_ENV
-        echo "${CHECKSUM}"
+        echo "CHECKSUM=${LATEST_HASH}" >> "$GITHUB_ENV"
     
     # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
     - uses: actions/checkout@v4