[tests] Disable timing-based Timer tests in CI

Cherry-picked from eb8a1ef7aa.

CMakeLists.txt

@@ -24,6 +24,10 @@ if(WITH_OSMESA)
     add_compile_options(-D__OSMESA__)
 endif()
 
+if($ENV{CI})
+    add_compile_options(-DCI_BUILD=1)
+endif()
+
 mason_use(geometry VERSION 0.8.0 HEADER_ONLY)
 mason_use(variant VERSION 1.1.0 HEADER_ONLY)
 mason_use(unique_resource VERSION dev HEADER_ONLY)

test/src/mbgl/test/util.hpp

@@ -18,7 +18,7 @@
 #define TEST_IS_SIMULATOR 0
 #endif
 
-#if !TEST_IS_SIMULATOR
+#if !TEST_IS_SIMULATOR && !CI_BUILD
 #define TEST_REQUIRES_ACCURATE_TIMING(name) name
 #else
 #define TEST_REQUIRES_ACCURATE_TIMING(name) DISABLED_ ## name