fix(deps): update dependency com.uber.nullaway:nullaway to v0.12.1 (open-telemetry#1522)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

dependencyManagement/build.gradle.kts

@@ -57,7 +57,7 @@ val DEPENDENCIES = listOf(
   "com.google.code.findbugs:annotations:3.0.1u2",
   "com.google.code.findbugs:jsr305:3.0.2",
   "com.squareup.okhttp3:okhttp:4.12.0",
-  "com.uber.nullaway:nullaway:0.12.0",
+  "com.uber.nullaway:nullaway:0.12.1",
   "org.assertj:assertj-core:3.26.3",
   "org.awaitility:awaitility:4.2.2",
   "org.bouncycastle:bcpkix-jdk15on:1.70",