Bump jettyVersion from 11.0.15 to 12.0.5

Bumps `jettyVersion` from 11.0.15 to 12.0.5.

Updates `org.eclipse.jetty:jetty-http` from 11.0.15 to 12.0.5

Updates `org.eclipse.jetty:jetty-server` from 11.0.15 to 12.0.5

Updates `org.eclipse.jetty:jetty-util` from 11.0.15 to 12.0.5

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-http
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.eclipse.jetty:jetty-server
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.eclipse.jetty:jetty-util
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

build.gradle

@@ -120,7 +120,7 @@ ext {
     hamcrestVersion = "2.2"
     jacksonVersion = "2.15.2" // This Jackson is used in the tests.
     jupiterVersion = "5.10.1"
-    jettyVersion = "11.0.15"
+    jettyVersion = "12.0.5"
     servletVersion = "4.0.1"
     testcontainersVersion = '1.19.3'
     awaitilityVersion = '4.2.0'