prepare 2.9.2 release (#83)

## [2.9.2] - 2023-08-28
### Fixed:
- Fixed cause of potential crash when using test data feature. Thanks,
@cochicde!

---------

Co-authored-by: Harpo Roeder <hroeder@launchdarkly.com>
Co-authored-by: Ben Woskow <48036130+bwoskow-ld@users.noreply.github.com>
Co-authored-by: Ben Woskow <bwoskow@launchdarkly.com>
Co-authored-by: Eli Bishop <eli@launchdarkly.com>
Co-authored-by: LaunchDarklyCI <dev@launchdarkly.com>
Co-authored-by: LaunchDarklyReleaseBot <launchdarklyreleasebot@launchdarkly.com>
Co-authored-by: Ryan Lamb <4955475+kinyoklion@users.noreply.github.com>
Co-authored-by: Ember Stevens <ember.stevens@launchdarkly.com>
Co-authored-by: ember-stevens <79482775+ember-stevens@users.noreply.github.com>
Co-authored-by: Casey Waldren <cwaldren@launchdarkly.com>
Co-authored-by: Gavin Whelan <gwhelan@launchdarkly.com>
Co-authored-by: Ben Levy <benjaminlevy007@gmail.com>
Co-authored-by: ld-repository-standards[bot] <113625520+ld-repository-standards[bot]@users.noreply.github.com>
Co-authored-by: Kane Parkinson <93555788+kparkinson-ld@users.noreply.github.com>
Co-authored-by: Louis Chan <lchan@launchdarkly.com>
Co-authored-by: Louis Chan <91093020+louis-launchdarkly@users.noreply.github.com>

Author: 14 people

CODEOWNERS

@@ -0,0 +1,2 @@
+# Repository Maintainers
+* @launchdarkly/team-sdk

README.md

@@ -8,7 +8,7 @@ For using LaunchDarkly in _client-side_ C/C++ applications, refer to our [client
 
 ## LaunchDarkly overview
 
-[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves over 100 billion feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
+[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves trillions of feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/home/getting-started) using LaunchDarkly today!
 
 [![Twitter Follow](https://img.shields.io/twitter/follow/launchdarkly.svg?style=social&label=Follow&maxAge=2592000)](https://twitter.com/intent/follow?screen_name=launchdarkly)
 

src/integrations/test_data.c

@@ -587,6 +587,7 @@ LDi_buildTargetJSON(struct LDFlagBuilderTarget *target) {
 
     if(!(users = LDi_buildUsersJSON(target->users))) {
         LDJSONFree(res);
+        return NULL;
     }
 
     if(!LDObjectSetKey(res, "values", users)) {
@@ -1068,4 +1069,3 @@ LDFlagRuleBuilderThenReturnBoolean(struct LDFlagRuleBuilder *ruleBuilder, LDBool
     LDFlagRuleBuilderThenReturn(ruleBuilder, variationForBoolean(value));
     return LDBooleanTrue;
 }
-

tests/test-test-data.cpp

@@ -383,3 +383,11 @@ TEST_F(TestDataFixture, TestVariationForAllUsers) {
         ASSERT_EQ(LDBooleanTrue, result);
     }
 }
+
+TEST_F(TestDataFixture, TestFlagNULLUserKey) {
+    struct LDFlagBuilder *flag = LDTestDataFlag(td, "flag1");
+    LDFlagBuilderVariationForUser(flag, NULL, 1);
+    ASSERT_EQ(LDTestDataUpdate(td, flag), LDBooleanFalse);
+
+    LDFlagBuilderFree(flag);
+}