Fix IT test as they use a fix version 0.12.0 and not the current project one for some components

Signed-off-by: Fabrice Scellos <fabrice.scellos@soprasteria.com>

Author: fscellos

integration_tests/it_exemplars_otel_agent/pom.xml

@@ -37,6 +37,21 @@
       <groupId>io.prometheus</groupId>
       <artifactId>simpleclient</artifactId>
       <version>${project.version}</version>
+    </dependency>
+     <dependency>
+      <groupId>io.prometheus</groupId>
+      <artifactId>simpleclient_tracer_common</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+     <dependency>
+      <groupId>io.prometheus</groupId>
+      <artifactId>simpleclient_tracer_otel</artifactId>
+      <version>${project.version}</version>
+    </dependency>
+      <dependency>
+      <groupId>io.prometheus</groupId>
+      <artifactId>simpleclient_tracer_otel_agent</artifactId>
+      <version>${project.version}</version>
     </dependency>
     <dependency>
       <groupId>io.prometheus</groupId>

integration_tests/it_exemplars_otel_agent/src/test/java/io/prometheus/client/it/exemplars_otel_agent/ExemplarsOpenTelemetryAgentIT.java

@@ -42,6 +42,7 @@ public ExemplarsOpenTelemetryAgentIT() throws IOException, URISyntaxException {
             "java",
             "-Dotel.traces.exporter=logging",
             "-Dotel.metrics.exporter=none",
+            "-Dotel.traces.sampler=always_on",
             "-javaagent:/app/" + agentJar,
             "-jar",
             "/app/" + appJar