Update system-tests to 6873c9577ddc15693a98f9683075a1b9d4e587f0 (#5558)

Author: smola

.circleci/config.yml

@@ -23,7 +23,7 @@ instrumentation_modules: &instrumentation_modules "dd-java-agent/instrumentation
 debugger_modules: &debugger_modules "dd-java-agent/agent-debugger|dd-java-agent/agent-bootstrap|dd-java-agent/agent-builder|internal-api|communication|dd-trace-core"
 profiling_modules: &profiling_modules "dd-java-agent/agent-profiling"
 
-default_system_tests_commit: &default_system_tests_commit 6f47824f32add0efbd8329707c7fb27a437f0b23
+default_system_tests_commit: &default_system_tests_commit 6873c9577ddc15693a98f9683075a1b9d4e587f0
 
 parameters:
   gradle_flags: