Use split-tests-java-action from GitHub repository instead from marketplace

Author: Donnerbart

.github/workflows/integration-test.yml

@@ -18,9 +18,14 @@ jobs:
     outputs:
       json: ${{ steps.generate.outputs.split-index-json }}
     steps:
+      - name: Checkout split-tests-java-action
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
       - name: Generate split index list
         id: generate
-        uses: donnerbart/split-tests-java-action/generate-split-index-json@25d52b2bdc694f5077fde78908ee84fb23da4d90 # v1
+        # noinspection UndefinedAction
+        uses: ./generate-split-index-json
+        # noinspection UndefinedParamsPresent
         with:
           split-total: ${{ env.split-total }}
 
@@ -40,8 +45,15 @@ jobs:
       DOWNLOAD_JAR: false
       JAR_PATH: build/libs/split-tests-java.jar
     steps:
-      - name: Checkout split-test-java
+      - name: Checkout split-tests-java
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        with:
+          path: split-tests-java
+
+      - name: Checkout split-tests-java-action
         uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+        with:
+          path: split-tests-java-action
 
       - name: Set up JDK 21
         uses: actions/setup-java@3a4f6e1af504cf6a31855fa899c6aa5355ba6c12 # v4
@@ -53,11 +65,14 @@ jobs:
         uses: gradle/actions/setup-gradle@94baf225fe0a508e581a564467443d0e2379123b # v4
 
       - name: Compile split-tests-java
+        working-directory: split-tests-java
         run: ./gradlew shadowJar
 
       - name: Split tests
         id: split-tests
-        uses: donnerbart/split-tests-java-action@25d52b2bdc694f5077fde78908ee84fb23da4d90 # v1
+        # noinspection UndefinedAction
+        uses: ./split-tests-java-action
+        # noinspection UndefinedParamsPresent
         with:
           split-index: ${{ matrix.split-index }}
           split-total: ${{ env.split-total }}