Bump com.google.cloud:spring-cloud-gcp-dependencies from 4.7.1 to 4.8.4

Bumps [com.google.cloud:spring-cloud-gcp-dependencies](https://github.com/GoogleCloudPlatform/spring-cloud-gcp) from 4.7.1 to 4.8.4.
- [Release notes](https://github.com/GoogleCloudPlatform/spring-cloud-gcp/releases)
- [Changelog](https://github.com/GoogleCloudPlatform/spring-cloud-gcp/blob/main/CHANGELOG.md)
- [Commits](GoogleCloudPlatform/spring-cloud-gcp@v4.7.1...v4.8.4)

---
updated-dependencies:
- dependency-name: com.google.cloud:spring-cloud-gcp-dependencies
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

pom.xml

@@ -35,7 +35,7 @@
         <sonar.organization>navikt</sonar.organization>
         <sonar.host.url>https://sonarcloud.io</sonar.host.url>
         <sonar.projectKey>navikt_aap-soknad-api</sonar.projectKey>
-        <spring-cloud-gcp.version>4.7.1</spring-cloud-gcp.version>
+        <spring-cloud-gcp.version>4.8.4</spring-cloud-gcp.version>
         <springdoc.version>2.1.0</springdoc.version>
         <swagger.annotations.version>2.2.15</swagger.annotations.version>
         <testcontainers.version>1.18.3</testcontainers.version>