ci: update github actions (#373)

* ci: update actions/checkout to v4

* ci: update actions/setup-java to v4

Author: armujahid

.github/workflows/maven.yml

@@ -17,10 +17,10 @@ jobs:
     name: Java ${{ matrix.java }} ${{ matrix.jdk }}
     steps:
       - name: Checkout Source Code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup Java
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
           distribution: ${{ matrix.jdk }}
           java-package: jdk