Bump org.eclipse.jetty:jetty-bom from 11.0.24 to 12.0.21

Bumps [org.eclipse.jetty:jetty-bom](https://github.com/jetty/jetty.project) from 11.0.24 to 12.0.21.
- [Release notes](https://github.com/jetty/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-11.0.24...jetty-12.0.21)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-bom
  dependency-version: 12.0.21
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ commons-cli = { group = "commons-cli", name = "commons-cli", version = "1.9.0" }
 junit-jupiter = { group = "org.junit.jupiter", name = "junit-jupiter", version = "5.13.0" }
 mockito-core = { group = "org.mockito", name = "mockito-core", version.ref = "mockito" }
 mockito-junit-jupiter = { group = "org.mockito", name = "mockito-junit-jupiter", version.ref = "mockito" }
-jetty-bom = { group = "org.eclipse.jetty", name = "jetty-bom", version = "11.0.24" }
+jetty-bom = { group = "org.eclipse.jetty", name = "jetty-bom", version = "12.0.21" }
 
 [plugins]
 th2-base = { id = "com.exactpro.th2.gradle.base", version.ref = "th2-plugin" }