Fix spring cloud gw latest dep test (open-telemetry#13960)

Author: laurit

instrumentation/spring/spring-cloud-gateway/spring-cloud-gateway-2.2/testing/build.gradle.kts

@@ -12,9 +12,7 @@ dependencies {
   testImplementation(project(":instrumentation:spring:spring-cloud-gateway:spring-cloud-gateway-common:testing"))
 
   testLibrary("org.springframework.cloud:spring-cloud-starter-gateway:2.2.0.RELEASE")
-  // latest version of spring-cloud-starter-gateway is not compatible with spring boot 3.5 yet
-  testImplementation("org.springframework.boot:spring-boot-starter-test:2.2.0.RELEASE")
-  latestDepTestLibrary("org.springframework.boot:spring-boot-starter-test:2.4.+") // documented limitation
+  testLibrary("org.springframework.boot:spring-boot-starter-test:2.2.0.RELEASE")
 }
 
 tasks.withType<Test>().configureEach {

javaagent-tooling/src/main/java/io/opentelemetry/javaagent/tooling/ignore/AdditionalLibraryIgnoredTypesConfigurer.java

@@ -136,7 +136,8 @@ public void configure(IgnoredTypesBuilder builder) {
         .allowClass("org.springframework.boot.web.embedded.tomcat.TomcatEmbeddedWebappClassLoader")
         .allowClass("org.springframework.boot.web.servlet.DelegatingFilterProxyRegistrationBean$")
         .allowClass("org.springframework.boot.StartupInfoLogger$")
-        .allowClass("org.springframework.boot.SpringApplicationShutdownHook");
+        .allowClass("org.springframework.boot.SpringApplicationShutdownHook")
+        .allowClass("org.springframework.boot.convert.ApplicationConversionService$$Lambda");
 
     builder
         .ignoreClass("org.springframework.cglib.")