Fix GitHub building

Author: Madis0

.github/workflows/build.yml

@@ -12,16 +12,16 @@ jobs:
       matrix:
         # Use these Java versions
         java: [
-          21,    # Current Java LTS
+          25,    # Current Java LTS
         ]
     runs-on: ubuntu-22.04
     steps:
       - name: checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
       - name: validate gradle wrapper
-        uses: gradle/actions/wrapper-validation@v4
+        uses: gradle/actions/wrapper-validation@v5
       - name: setup jdk ${{ matrix.java }}
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v5.2.0
         with:
           java-version: ${{ matrix.java }}
           distribution: 'microsoft'
@@ -30,8 +30,8 @@ jobs:
       - name: build
         run: ./gradlew build
       - name: capture build artifacts
-        if: ${{ matrix.java == '21' }} # Only upload artifacts built from latest java
-        uses: actions/upload-artifact@v4
+        if: ${{ matrix.java == '25' }} # Only upload artifacts built from latest java
+        uses: actions/upload-artifact@v7.0.0
         with:
           name: Artifacts
           path: build/libs/