chore(deps): Update dependency com.uber.nullaway:nullaway to v0.12.4

Author: renovate[bot]

gradle/libs.versions.toml

@@ -11,7 +11,7 @@ slf4md = "1.0.1"
 # static analysis
 errorprone-gradle = "4.1.0"
 errorprone-core = "2.36.0"
-nullaway = "0.12.3"
+nullaway = "0.12.4"
 checker-qual = "3.49.0"
 
 # gradle