chore: Upgrade Testcontainers for smoke tests on current GitHub Actions runners (#438)

* debug-smoke

* upgrade testcontainers

* remove debug

Author: thugrock7

otel-extensions/build.gradle.kts

@@ -9,7 +9,7 @@ plugins {
 sourceSets {
     main {
         proto {
-            srcDir("src/main/proto")
+            setSrcDirs(listOf("src/main/proto/proto"))
             exclude("gen/go/**")
         }
     }

smoke-tests/build.gradle.kts

@@ -12,7 +12,7 @@ val versions: Map<String, String> by extra
 dependencies{
     testImplementation(project(":testing-common"))
     testImplementation(project(":javaagent-core"))
-    testImplementation("org.testcontainers:testcontainers:1.15.2")
+    testImplementation("org.testcontainers:testcontainers:1.21.4")
     testImplementation("com.squareup.okhttp3:okhttp:4.9.0")
     testImplementation("org.awaitility:awaitility:4.0.3")
     testImplementation("io.opentelemetry.proto:opentelemetry-proto:${versions["opentelemetry_proto"]}")