build steps

.github/workflows/build.yml

@@ -4,9 +4,10 @@ jobs:
   Build-Server-Jar:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v2
       - uses: actions/setup-java@v3
         with:
           distribution: temurin
           java-version: '8'
-      - run: gradlew
+      - run: .\gradlew.bat
+      - run: .\gradlew jar