refactor(ci): introduce a reusable workflow

.github/workflows/tramline-release.yml

@@ -16,20 +16,10 @@ jobs:
   signed-build:
     runs-on: ubuntu-latest
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
-
-      - name: Set up JDK
-        uses: actions/setup-java@99b8673ff64fbf99d8d325f52d9a5bdedb8483e9 # v4.2.1
-        with:
-          distribution: temurin
-          java-version: 18
-
-      - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@6cec5d49d4d6d4bb982fbed7047db31ea6d38f11 # v3
+      - name: Setup build environment
+        uses: msfjarvis/compose-lobsters/.github/reusable-workflows/setup-gradle@main
         with:
           cache-read-only: true
-          gradle-home-cache-cleanup: true
 
       - name: Build release app
         run: |