Fix mkdir

Author: IsaacMarovitz

.github/workflows/build.yml

@@ -78,10 +78,10 @@ jobs:
           echo "DXVK_BUILD_DIR=\"$DXVK_BUILD_DIR\"" >> $GITHUB_ENV
           echo "FINAL_DIR=\"$FINAL_DIR\"" >> $GITHUB_ENV
 
-          mkdir $WINE_BUILD_DIR
-          mkdir $WINE64_FINAL_DIR
-          mkdir $DXVK_BUILD_DIR
-          mkdir $FINAL_DIR
+          mkdir "$WINE_BUILD_DIR"
+          mkdir "$WINE64_FINAL_DIR"
+          mkdir "$DXVK_BUILD_DIR"
+          mkdir "$FINAL_DIR"
 
       - name: Set Variables
         run: |