fix(deps): update jetty monorepo to v12.1.9 (#5216)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -59,7 +59,7 @@
 
         <jetty10.version>10.0.26</jetty10.version>
         <jetty11.version>11.0.26</jetty11.version>
-        <jetty12.version>12.1.8</jetty12.version>
+        <jetty12.version>12.1.9</jetty12.version>
         <servlet6.version>6.1.0</servlet6.version>
         <slf4j.version>2.0.17</slf4j.version>
         <assertj.version>3.27.7</assertj.version>