build(deps): Bump org.eclipse.jetty:jetty-bom

Bumps [org.eclipse.jetty:jetty-bom](https://github.com/jetty/jetty.project) from 9.4.58.v20250814 to 12.1.0.
- [Release notes](https://github.com/jetty/jetty.project/releases)
- [Commits](jetty/jetty.project@jetty-9.4.58.v20250814...jetty-12.1.0)

---
updated-dependencies:
- dependency-name: org.eclipse.jetty:jetty-bom
  dependency-version: 12.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

jetty-embedded-10/pom.xml

@@ -15,7 +15,7 @@
   <description>Jetty Embedded 10.0.x container integration for the Arquillian project</description>
 
   <properties>
-    <version.jetty>10.0.26</version.jetty>
+    <version.jetty>12.1.0</version.jetty>
     <version.weld>3.1.9.Final</version.weld>
 
     <!-- Jetty 10 need Java 11 -->

jetty-embedded-11/pom.xml

@@ -15,7 +15,7 @@
   <description>Jetty Embedded 11.0.x container integration for the Arquillian project</description>
 
   <properties>
-    <version.jetty>11.0.26</version.jetty>
+    <version.jetty>12.1.0</version.jetty>
     <version.weld>4.0.3.Final</version.weld>
 
     <!-- Jetty 11 need Java 11 -->

jetty-embedded-9/pom.xml

@@ -15,7 +15,7 @@
   <description>Jetty Embedded 9.x container integration for the Arquillian project</description>
 
   <properties>
-    <version.jetty>9.4.58.v20250814</version.jetty>
+    <version.jetty>12.1.0</version.jetty>
 
     <!-- Weld 2.2.x is first version of Weld to properly support Jetty 9 -->
     <version.weld>3.1.9.Final</version.weld>