scriptcheck.yml: bumped amount of hard-coded jobs for dmake build to 3

Author: firewave

Diff for: .github/workflows/scriptcheck.yml

@@ -218,7 +218,7 @@ jobs:
 
       - name: run dmake
         run: |
-          make -j2 CXXFLAGS="-w" run-dmake
+          make -j3 CXXFLAGS="-w" run-dmake
 
       - name: check diff
         run: |