Update vc.yml

Author: hemanthmanga

.github/workflows/vc.yml

@@ -11,12 +11,9 @@ jobs:
       - name: Check if VCToolsRedistDir exists
         shell: cmd
         run: |
-          call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64
-          
-          :: Check if the VCToolsRedistDir variable is set
-          if not defined VCToolsRedistDir (
+          call "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64 && (
+            echo VCToolsRedistDir is set to: %VCToolsRedistDir%
+          ) || (
             echo Error: Environment variable VCToolsRedistDir is not set.
             exit /b 1
-          ) else (
-            echo VCToolsRedistDir is set to: %VCToolsRedistDir%
           )