ci: Bring Github actions up-to-date

Author: Siphalor

.github/workflows/ci.yaml

@@ -7,19 +7,17 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
+        with:
+          submodules: true
       - name: Setup Java
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v5
         with:
           distribution: temurin
-          java-version: 17
-      - name: Set Gradle execution rights
-        run: chmod +x ./gradlew
+          java-version: 24
+      - name: Set execution rights
+        run: chmod +x ./gradlew ./helpers/run-each-mc.sh
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
       - name: Build
-        uses: gradle/gradle-build-action@v2
-        with:
-          arguments: assemble
-      - name: Check
-        uses: gradle/gradle-build-action@v2
-        with:
-          arguments: check
+        run: ./helpers/run-each-mc.sh ./gradlew build

.github/workflows/push-main.yaml

@@ -1,15 +1,15 @@
 on:
   push:
     branches:
-      - "1.16"
+      - "cross-version"
 
 
 jobs:
   auto-fix:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v5
 
       - name: Fix language file names
         run: |