Modernize project

.editorconfig

@@ -1,3 +1,4 @@
 [{*.kt,*.kts}]
+ktlint_code_style = intellij_idea
 ij_kotlin_allow_trailing_comma = true
 ij_kotlin_allow_trailing_comma_on_call_site = true

.github/workflows/cd.yml

@@ -10,21 +10,16 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
-      - name: Setup JDK 17
-        uses: actions/setup-java@v2
+      - name: Setup JDK
+        uses: actions/setup-java@v4
         with:
-          distribution: 'temurin'
           java-version: 17
+          distribution: temurin
 
-      - name: Setup Gradle cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.gradle
-          key: ${{ runner.os }}-17-gradle-${{ hashFiles('build.gradle') }}
-          restore-keys: |
-            ${{ runner.os }}-17-gradle
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
 
       - name: Check
         run: ./gradlew check
@@ -39,7 +34,7 @@ jobs:
           GPG_PASSPHRASE: ${{ secrets.GPG_PASSPHRASE }}
 
       - name: Upload Gradle reports
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
           name: Gradle Reports

.github/workflows/ci.yml

@@ -7,32 +7,27 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ 17 ]
+        java: [ 17, 21 ]
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Setup JDK
-        uses: actions/setup-java@v2
+        uses: actions/setup-java@v4
         with:
-          distribution: 'temurin'
           java-version: ${{ matrix.java }}
+          distribution: temurin
 
-      - name: Setup Gradle cache
-        uses: actions/cache@v2
-        with:
-          path: ~/.gradle
-          key: ${{ runner.os }}-${{ matrix.java }}-gradle-${{ hashFiles('build.gradle') }}
-          restore-keys: |
-            ${{ runner.os }}-${{ matrix.java }}-gradle
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
 
       - name: Check
         run: ./gradlew check
 
-      - name: Upload Gradle reports
-        uses: actions/upload-artifact@v2
+      - name: Upload Gradle reports ${{ matrix.java }}
+        uses: actions/upload-artifact@v4
         if: failure()
         with:
-          name: Gradle Reports ${{ matrix.java }}
+          name: Gradle Reports
           path: "**/build/reports"