Fixed bug

.github/workflows/main.yml

@@ -10,6 +10,8 @@ jobs:
     name: Build CentOS 6 artifacts
     runs-on: ubuntu-latest
     container: centos:6
+    env:
+      SHA8: ${GITHUB_SHA::8}
     steps:
       - name: Prepare CentOS 6 tools
         run: |
@@ -19,7 +21,7 @@ jobs:
       - name: Checkout code
         run: |
           git clone https://github.com/MoneroOcean/xmrig.git
-          git checkout ${{github.ref}:10}
+          git checkout ${GITHUB_REF:10}
           cd xmrig
       - name: Build project on CentOS 6
         run: |
@@ -27,12 +29,12 @@ jobs:
           scl enable devtoolset-6 "make -j$(nproc)"
           cp src/config.json .
           mv xmrig-notls xmrig
-          tar cfz xmrig-${{github.ref}:10}-lin64.tar.gz xmrig config.json
+          tar cfz xmrig-${GITHUB_REF:10}-lin64.tar.gz xmrig config.json
       - name: Upload CentOS 6 build artifact
         uses: actions/upload-artifact@v1
         with:
           name: centos6_build
-          path: ./xmrig-${{github.ref}:10}-lin64.tar.gz
+          path: ./xmrig-${GITHUB_REF:10}-lin64.tar.gz
   deploy:
     needs: build_lin_rh6
     name: Create release and upload artifacts
@@ -58,6 +60,6 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
           upload_url: ${{ steps.create_release.outputs.upload_url }}
-          asset_path: ./xmrig-${{github.ref}:10}-lin64.tar.gz
-          asset_name: xmrig-${{github.ref}:10}-lin64.tar.gz
+          asset_path: ./xmrig-${GITHUB_REF:10}-lin64.tar.gz
+          asset_name: xmrig-${GITHUB_REF:10}-lin64.tar.gz
           asset_content_type: application/zip