Merge branch 'master' of github.com:DataDog/dd-trace-php into bob/windows

Author: bwoebi

.gitlab/benchmarks.yml

@@ -58,6 +58,7 @@ benchmarks-tracer:
           - zend_abstract_interface/**/*
           - tests/Benchmarks/**/*
           - benchmark/*
+          - tea/**/*
         compare_to: "master"
       when: on_success
     - when: manual

.gitmodules

@@ -11,3 +11,6 @@
 [submodule "appsec/third_party/libddwaf"]
 	path = appsec/third_party/libddwaf
 	url = https://github.com/DataDog/libddwaf.git
+[submodule "tea/benchmarks/google-benchmark"]
+	path = tea/benchmarks/google-benchmark
+	url = https://github.com/google/benchmark.git