Merge pull request #484 from sigstore/renovate/gradle-gradle-build-action-2.x

chore(deps): update gradle/gradle-build-action action to v2.8.0

Author: loosebazooka

.github/workflows/ci.yaml

@@ -53,12 +53,12 @@ jobs:
           go install github.com/sigstore/fulcio@main
 
     - name: Test sigstore-java
-      uses: gradle/gradle-build-action@749f47bda3e44aa060e82d7b3ef7e40d953bd629 # v2.4.2
+      uses: gradle/gradle-build-action@ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc # v2.8.0
       with:
         arguments: build
 
     - name: Test sigstore-java/sandbox
-      uses: gradle/gradle-build-action@749f47bda3e44aa060e82d7b3ef7e40d953bd629 # v2.4.2 
+      uses: gradle/gradle-build-action@ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc # v2.8.0 
       with:
         arguments: build
         build-root-directory: sandbox

.github/workflows/conformance.yml

@@ -24,7 +24,7 @@ jobs:
           distribution: 'temurin'
 
       - name: Build sigstore-java
-        uses: gradle/gradle-build-action@749f47bda3e44aa060e82d7b3ef7e40d953bd629 # v2.4.2
+        uses: gradle/gradle-build-action@ef76a971e2fa3f867b617efd72f2fbd72cf6f8bc # v2.8.0
         with:
           arguments: :sigstore-cli:build