fix(appsec/jetty): disable multipart test on Jetty 9.0.x and bump test version to 10.0.10

- jetty-server-9.0 and jetty-server-9.0.4: set testBodyMultipart() = false.
  jetty-appsec-8.1.3 covers [8.1.3, 9.2.0.RC0) which includes Jetty 9.0.x;
  its extractContentParameters() calls ParameterCollector.put(String, String)
  which does not exist in Jetty 9.0.x, causing HTTP 500 on multipart requests.

- jetty-server-10.0: bump test dependency from 10.0.0 to 10.0.10.
  jetty-appsec-9.4 requires _multiParts: Lorg/eclipse/jetty/server/MultiParts;
  but that type was only introduced in 10.0.10 (previously MultiPartFormInputStream),
  so the muzzle check fails for Jetty 10.0.0-10.0.9, leaving tests uninstrumented.

- Revert accidental modification of agent-jmxfetch/integrations-core submodule
  back to its master pointer.

Author: jandro996

dd-java-agent/agent-jmxfetch/integrations-core

@@ -48,9 +48,11 @@ dependencies {
   }
   testImplementation project(':dd-java-agent:instrumentation:jetty:jetty-util-9.4.31')
 
-  testImplementation group: 'org.eclipse.jetty', name: 'jetty-server', version: '10.0.0'
-  testImplementation group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '10.0.0'
-  testImplementation group: 'org.eclipse.jetty.websocket', name: 'websocket-javax-server', version: '10.0.0'
+  // Use 10.0.10+ so jetty-appsec-9.4 applies: _multiParts changed from MultiPartFormInputStream
+  // to MultiParts in 10.0.10 (jetty-appsec-9.4's muzzle requires the MultiParts type).
+  testImplementation group: 'org.eclipse.jetty', name: 'jetty-server', version: '10.0.10'
+  testImplementation group: 'org.eclipse.jetty', name: 'jetty-servlet', version: '10.0.10'
+  testImplementation group: 'org.eclipse.jetty.websocket', name: 'websocket-javax-server', version: '10.0.10'
   testImplementation project(':dd-java-agent:appsec:appsec-test-fixtures')
   testImplementation testFixtures(project(":dd-java-agent:instrumentation:jetty:jetty-server:jetty-server-9.0"))
   testImplementation testFixtures(project(':dd-java-agent:instrumentation:servlet:javax-servlet:javax-servlet-3.0'))

dd-java-agent/instrumentation/jetty/jetty-server/jetty-server-10.0/build.gradle

@@ -82,7 +82,10 @@ abstract class Jetty9Test extends HttpServerTest<Server> {
 
   @Override
   boolean testBodyMultipart() {
-    true
+    // jetty-appsec-8.1.3 covers [8.1.3, 9.2.0.RC0) which includes Jetty 9.0.x.
+    // Its extractContentParameters() advice calls ParameterCollector.put(String, String)
+    // which does not exist in Jetty 9.0.x → HTTP 500 on multipart requests.
+    false
   }
 
   @Override

dd-java-agent/instrumentation/jetty/jetty-server/jetty-server-9.0.4/src/test/groovy/datadog/trace/instrumentation/jetty9/Jetty9Test.groovy

@@ -81,7 +81,10 @@ abstract class Jetty9Test extends HttpServerTest<Server> {
 
   @Override
   boolean testBodyMultipart() {
-    true
+    // jetty-appsec-8.1.3 covers [8.1.3, 9.2.0.RC0) which includes Jetty 9.0.x.
+    // Its extractContentParameters() advice calls ParameterCollector.put(String, String)
+    // which does not exist in Jetty 9.0.x → HTTP 500 on multipart requests.
+    false
   }
 
   @Override