build(deps): bump org.bouncycastle:bcpkix-jdk18on from 1.77 to 1.78

Bumps [org.bouncycastle:bcpkix-jdk18on](https://github.com/bcgit/bc-java) from 1.77 to 1.78.
- [Changelog](https://github.com/bcgit/bc-java/blob/main/docs/releasenotes.html)
- [Commits](https://github.com/bcgit/bc-java/commits)

---
updated-dependencies:
- dependency-name: org.bouncycastle:bcpkix-jdk18on
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -44,7 +44,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-validation'
     implementation 'io.fabric8:kubernetes-client:6.11.0'
     implementation 'com.nimbusds:nimbus-jose-jwt:9.37.3'
-    implementation 'org.bouncycastle:bcpkix-jdk18on:1.77'
+    implementation 'org.bouncycastle:bcpkix-jdk18on:1.78'
 
     developmentOnly 'org.springframework.boot:spring-boot-devtools'
     annotationProcessor 'org.springframework.boot:spring-boot-configuration-processor'