Disable all tests that require a leak sanitizer because
OpenBSD does not support it.

Index: absl/container/CMakeLists.txt
--- absl/container/CMakeLists.txt.orig
+++ absl/container/CMakeLists.txt
@@ -101,6 +101,7 @@ absl_cc_library(
   PUBLIC
 )
 
+if (NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
 absl_cc_test(
   NAME
     compressed_tuple_test
@@ -117,6 +118,7 @@ absl_cc_test(
     absl::utility
     GTest::gmock_main
 )
+endif()
 
 absl_cc_library(
   NAME
@@ -294,6 +296,7 @@ absl_cc_library(
   PUBLIC
 )
 
+if (NOT CMAKE_SYSTEM_NAME STREQUAL "OpenBSD")
 absl_cc_test(
   NAME
     flat_hash_map_test
@@ -313,6 +316,7 @@ absl_cc_test(
     absl::unordered_map_modifiers_test
     GTest::gmock_main
 )
+endif()
 
 absl_cc_library(
   NAME
