build(deps): bump io.hypersistence:hypersistence-utils-hibernate-70 (GoogleCloudPlatform#4139)

Bumps [io.hypersistence:hypersistence-utils-hibernate-70](https://github.com/vladmihalcea/hypersistence-utils) from 3.15.1 to 3.15.2.
- [Changelog](https://github.com/vladmihalcea/hypersistence-utils/blob/master/changelog.txt)
- [Commits](vladmihalcea/hypersistence-utils@hypersistence-utils-parent-3.15.1...hypersistence-utils-parent-3.15.2)

---
updated-dependencies:
- dependency-name: io.hypersistence:hypersistence-utils-hibernate-70
  dependency-version: 3.15.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

samples/java/hibernate/pom.xml

@@ -57,7 +57,7 @@
     <dependency>
       <groupId>io.hypersistence</groupId>
       <artifactId>hypersistence-utils-hibernate-70</artifactId>
-      <version>3.15.1</version>
+      <version>3.15.2</version>
     </dependency>
     <!-- Add testcontainers, so we can run a Docker container with PGAdapter+Spanner Emulator -->
     <dependency>