chore: Bump the gradle-version-updates group in /backend with 2 updates

Bumps the gradle-version-updates group in /backend with 2 updates: [com.nimbusds:nimbus-jose-jwt](https://bitbucket.org/connect2id/nimbus-jose-jwt) and com.github.spotbugs.


Updates `com.nimbusds:nimbus-jose-jwt` from 9.43 to 9.45
- [Changelog](https://bitbucket.org/connect2id/nimbus-jose-jwt/src/master/CHANGELOG.txt)
- [Commits](https://bitbucket.org/connect2id/nimbus-jose-jwt/branches/compare/9.45..9.43)

Updates `com.github.spotbugs` from 6.0.25 to 6.0.26

---
updated-dependencies:
- dependency-name: com.nimbusds:nimbus-jose-jwt
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gradle-version-updates
- dependency-name: com.github.spotbugs
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gradle-version-updates
...

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

backend/build.gradle

@@ -4,7 +4,7 @@ plugins {
     id "org.springframework.boot" version "3.3.5"
     id "io.spring.dependency-management" version "1.1.6"
     id "io.freefair.lombok" version "8.10.2"
-    id "com.github.spotbugs" version "6.0.25"
+    id "com.github.spotbugs" version "6.0.26"
     id "com.github.ben-manes.versions" version "0.51.0"
     id "org.owasp.dependencycheck" version "8.4.3"
     id "com.diffplug.spotless" version "6.25.0"
@@ -40,7 +40,7 @@ dependencies {
     implementation "org.springframework.boot:spring-boot-starter-cache"
     implementation "org.springframework.boot:spring-boot-starter-actuator"
     implementation "org.springframework.boot:spring-boot-starter-oauth2-client"
-    implementation "com.nimbusds:nimbus-jose-jwt:9.43" // Explicit version to fix CVE-2023-52428
+    implementation "com.nimbusds:nimbus-jose-jwt:9.45" // Explicit version to fix CVE-2023-52428
     implementation "com.fasterxml.uuid:java-uuid-generator:${javaUuidGeneratorVersion}"
     implementation "net.logstash.logback:logstash-logback-encoder:${logstashVersion}"
     implementation "com.github.ben-manes.caffeine:caffeine:${caffeineVersion}"