Updating Github Actions and enabling cross-platform testing (#272)

* Upgraded actions/checkout to 4.1.4; Upgraded actions/setup-java to 4.2.1; Upgraded gradle/gradle-build-action to 3.3.2

* Fixing version declaration for gradle/gradle-build-action

* Replaced deprecated gradle-build-action with setup-gradle Github Action

* Build action will now occur on both a Windows VM and a Linux VM

.github/workflows/gradle.yml

@@ -22,17 +22,27 @@ permissions:
 
 jobs:
   build:
-
-    runs-on: ubuntu-latest
-
+    name: Build on ${{ matrix.os.runner }}
+    runs-on: ${{ matrix.os.runner }}
+    defaults:
+      run:
+        shell: ${{ matrix.os.shell }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - runner: windows-latest
+            shell: msys2 {0}
+          - runner: ubuntu-latest
+            shell: bash
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4.1.4
     - name: Set up JDK 11
-      uses: actions/setup-java@v3
+      uses: actions/setup-java@v4.2.1
       with:
         java-version: '11'
         distribution: 'temurin'
     - name: Build with Gradle
-      uses: gradle/gradle-build-action@bd5760595778326ba7f1441bcf7e88b49de61a25 # v2.6.0
+      uses: gradle/actions/[email protected]
       with:
         arguments: jvmTest