prepare 5.10.9 release (#312)

## [5.10.9] - 2023-06-30
### Changed:
- Bumping Guava version to incorporate CVE-2023-2976 fixes.

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build.gradle

@@ -70,7 +70,7 @@ ext.libraries = [:]
 ext.versions = [
     "commonsCodec": "1.15",
     "gson": "2.8.9",
-    "guava": "30.1-jre",
+    "guava": "32.0.1-jre",
     "jackson": "2.11.2", 
     "launchdarklyJavaSdkCommon": "1.3.0",
     "launchdarklyLogging": "1.1.0",