Try to fix automated job

Author: hogsy

.github/workflows/build-linux-gcc_x64.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:    
-    - uses: actions/checkout@v2.4.0
+    - uses: actions/checkout
 
     - run: sudo apt install gcc g++ make libsdl2-dev
 
@@ -25,7 +25,7 @@ jobs:
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
 
     - name: 'Upload Artifact'
-      uses: actions/upload-artifact@v2.2.4
+      uses: actions/upload-artifact
       with:
         name: chronon-release
         path: release/