Upgrade apm-agent to 1.55.0 (elastic#131510)

Author: ldematte

docs/changelog/131510.yaml

@@ -0,0 +1,5 @@
+pr: 131510
+summary: Upgrade apm-agent to 1.55.0
+area: Infra/Metrics
+type: upgrade
+issues: []

gradle/verification-metadata.xml

@@ -71,9 +71,9 @@
             <sha256 value="10fe288fd7a2cdaf5175332b73529f9abf8fd54dcfff317d6967c0c35ffb133b" origin="Generated by Gradle"/>
          </artifact>
       </component>
-      <component group="co.elastic.apm" name="elastic-apm-agent" version="1.52.2">
-         <artifact name="elastic-apm-agent-1.52.2.jar">
-            <sha256 value="dee18355a06f66a425bd597d6447ccbe7e8b7a3c0667adb7b30da173e31044e0" origin="Generated by Gradle"/>
+      <component group="co.elastic.apm" name="elastic-apm-agent" version="1.55.0">
+         <artifact name="elastic-apm-agent-1.55.0.jar">
+            <sha256 value="3cbba96a64593c14568399dbc816fc36a5647e39449e1d4cf1eedce9880a9d3e" origin="Generated by Gradle"/>
          </artifact>
       </component>
       <component group="co.elastic.logging" name="ecs-logging-core" version="1.2.0">

modules/apm/build.gradle

@@ -20,7 +20,7 @@ dependencies {
   implementation "io.opentelemetry:opentelemetry-api:${otelVersion}"
   implementation "io.opentelemetry:opentelemetry-context:${otelVersion}"
   implementation "io.opentelemetry:opentelemetry-semconv:${otelSemconvVersion}"
-  runtimeOnly    "co.elastic.apm:elastic-apm-agent:1.52.2"
+  runtimeOnly    "co.elastic.apm:elastic-apm-agent:1.55.0"
 
   javaRestTestImplementation project(':modules:apm')
   javaRestTestImplementation project(':test:framework')