Update CI

Author: kpgalligan

.github/workflows/build.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{matrix.os}}
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Install msys2
         if: matrix.os == 'windows-latest'
@@ -32,15 +32,15 @@ jobs:
         uses: gradle/wrapper-validation-action@v1
 
       - name: Cache gradle
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.gradle/caches
           key: ${{ runner.os }}-gradle-${{ hashFiles('*.gradle.kts') }}
           restore-keys: |
             ${{ runner.os }}-gradle-
 
       - name: Cache konan
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         with:
           path: ~/.konan
           key: ${{ runner.os }}-gradle-${{ hashFiles('*.gradle.kts') }}