fix(examples): bump netty.version to 4.2.16.Final

Update Spring Dependency Management BOM overrides in both example
subprojects (example-spring-boot-starter-web and
example-spring-boot-starter-webflux) to use netty 4.2.16.Final, matching
the bump to the root resolutionStrategy floor. This ensures examples
remain consistent with the enforced netty version and are not vulnerable
to GHSA-mvh2-crg5-v77c.

Co-Authored-By: Catarina Correia <catarina.correia@getyourguide.com>

Author: claude

examples/example-spring-boot-starter-web/build.gradle

@@ -8,7 +8,7 @@ plugins {
 ext['jackson-bom.version'] = '3.1.4'
 ext['jackson-2-bom.version'] = '2.21.5'
 ext['logback.version'] = '1.5.34'
-ext['netty.version'] = '4.2.15.Final'
+ext['netty.version'] = '4.2.16.Final'
 ext['tomcat.version'] = '11.0.22'
 
 dependencies {

examples/example-spring-boot-starter-webflux/build.gradle

@@ -8,7 +8,7 @@ plugins {
 ext['jackson-bom.version'] = '3.1.4'
 ext['jackson-2-bom.version'] = '2.21.5'
 ext['logback.version'] = '1.5.34'
-ext['netty.version'] = '4.2.15.Final'
+ext['netty.version'] = '4.2.16.Final'
 ext['tomcat.version'] = '11.0.22'
 
 dependencies {