Bump gradle from 9.6.1-jdk21-alpine to 9.7.0-jdk21-alpine

Bumps gradle from 9.6.1-jdk21-alpine to 9.7.0-jdk21-alpine.

---
updated-dependencies:
- dependency-name: gradle
  dependency-version: 9.7.0-jdk21-alpine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Dockerfile

@@ -1,5 +1,5 @@
 #Build Jar
-FROM gradle:9.6.1-jdk21-alpine AS build
+FROM gradle:9.7.0-jdk21-alpine AS build
 WORKDIR /home/gradle/validator
 COPY --chown=gradle build.gradle /home/gradle/validator/build.gradle
 COPY bowtie/JsonSchemaValidator.java /home/gradle/validator/bowtie/JsonSchemaValidator.java