build(deps): bump org.bouncycastle:bcpkix-fips from 2.0.7 to 2.1.8

Bumps org.bouncycastle:bcpkix-fips from 2.0.7 to 2.1.8.

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

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

dependencies.gradle

@@ -7,7 +7,7 @@ ext {
 versions.aspectJVersion = "1.9.4"
 versions.apacheDsVersion = "2.0.0.AM27"
 versions.bouncyCastleFipsVersion = "2.0.0"
-versions.bouncyCastlePkixFipsVersion = "2.0.7"
+versions.bouncyCastlePkixFipsVersion = "2.1.8"
 versions.bouncyCastleTlsFipsVersion = "2.1.20"
 versions.hamcrestVersion = "3.0"
 versions.springBootVersion = "2.7.18"