Polish CI workflows (#11686)

Author: eddumelendez

.github/workflows/ci-rootless.yml

@@ -51,8 +51,7 @@ jobs:
         uses: docker/setup-docker-action@v4
         with:
           rootless: true
-      - name: Setup Gradle Build Action
-        uses: gradle/actions/setup-gradle@v6
+      - uses: ./.github/actions/setup-build
       - name: Build with Gradle
         run: ./gradlew --no-daemon --scan testcontainers:test --tests '*GenericContainerRuleTest'
       - uses: ./.github/actions/setup-junit-report

.github/workflows/ci.yml

@@ -89,9 +89,7 @@ jobs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
       - uses: actions/checkout@v5
-      - uses: ./.github/actions/setup-java
-      - name: Setup Gradle Build Action
-        uses: gradle/actions/setup-gradle@v6
+      - uses: ./.github/actions/setup-build
       - id: set-matrix
         env:
           # Since we override the tests executor,
@@ -124,9 +122,7 @@ jobs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
       - uses: actions/checkout@v5
-      - uses: ./.github/actions/setup-java
-      - name: Setup Gradle Build Action
-        uses: gradle/actions/setup-gradle@v6
+      - uses: ./.github/actions/setup-build
       - id: set-matrix
         working-directory: ./examples/
         env:
@@ -161,9 +157,7 @@ jobs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
       - uses: actions/checkout@v5
-      - uses: ./.github/actions/setup-java
-      - name: Setup Gradle Build Action
-        uses: gradle/actions/setup-gradle@v6
+      - uses: ./.github/actions/setup-build
       - id: set-matrix
         env:
           # Since we override the tests executor,