fix(deps): update jetty monorepo to v12.0.20 (#4796)

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

Author: renovate[bot]

pom.xml

@@ -60,7 +60,7 @@
         <jetty9.version>9.4.57.v20241219</jetty9.version>
         <jetty10.version>10.0.25</jetty10.version>
         <jetty11.version>11.0.25</jetty11.version>
-        <jetty12.version>12.0.19</jetty12.version>
+        <jetty12.version>12.0.20</jetty12.version>
         <slf4j.version>1.7.36</slf4j.version>
         <assertj.version>3.27.3</assertj.version>
         <byte-buddy.version>1.17.5</byte-buddy.version>