CI: Move from deprecated set-output

.ci/ci-check.py

@@ -246,9 +246,9 @@ if __name__ == "__main__":
     if args.run:
         res = check_whether_we_should_run()
         if res:
-            print("::set-output name=run::true")
+            print("run=true")
         else:
-            print("::set-output name=run::false")
+            print("run=false")
         sys.exit(0)
     else:
         main()

.github/workflows/main.yml

@@ -131,7 +131,7 @@ jobs:
       - name: Check whether to Run
         id: check-run
         run: |
-          python .ci/ci-check.py --whether-to-run
+          python .ci/ci-check.py --whether-to-run >> $GITHUB_OUTPUT
       - uses: msys2/setup-msys2@v2
         if: steps.check-run.outputs.run == 'true'
         with: