Update to gradle 8.8 (#151)

Update to the latest gradle and migrate to newer gradle actions.

Author: pkwarren

.github/workflows/ci.yaml

@@ -32,7 +32,7 @@ jobs:
           java-version: '21'
           cache: 'gradle'
       - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v3
+        uses: gradle/actions/wrapper-validation@v3
       - name: Lint
         run: make lint
       - name: Generate

.github/workflows/conformance.yaml

@@ -32,6 +32,6 @@ jobs:
           java-version: '21'
           cache: 'gradle'
       - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v3
+        uses: gradle/actions/wrapper-validation@v3
       - name: Test conformance
         run: make conformance

.github/workflows/release.yaml

@@ -32,7 +32,7 @@ jobs:
           java-version: '21'
 
       - name: Validate Gradle Wrapper
-        uses: gradle/wrapper-validation-action@v3
+        uses: gradle/actions/wrapper-validation@v3
 
       - name: Configure GPG signing & publish
         env:

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME