Update GitHub actions (#8)

Author: marchof

.github/workflows/build.yml

@@ -10,9 +10,9 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup JDK
-      uses: actions/setup-java@v2
+      uses: actions/setup-java@v3
       with:
         java-version: 11
         distribution: adopt

.github/workflows/deploy.yml

@@ -10,9 +10,9 @@ jobs:
     name: Deploy
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup JDK
-      uses: actions/setup-java@v2
+      uses: actions/setup-java@v3
       with:
         java-version: 11
         distribution: adopt