fix(deps): update dependency net.ltgt.gradle:gradle-nullaway-plugin to v2.3.0 (open-telemetry#2179)

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

Author: renovate[bot]

buildSrc/build.gradle.kts

@@ -14,7 +14,7 @@ dependencies {
   // When updating, update above in plugins too
   implementation("com.diffplug.spotless:spotless-plugin-gradle:7.2.1")
   implementation("net.ltgt.gradle:gradle-errorprone-plugin:4.3.0")
-  implementation("net.ltgt.gradle:gradle-nullaway-plugin:2.2.0")
+  implementation("net.ltgt.gradle:gradle-nullaway-plugin:2.3.0")
   implementation("org.owasp:dependency-check-gradle:12.1.3")
   implementation("ru.vyarus.animalsniffer:ru.vyarus.animalsniffer.gradle.plugin:2.0.1")
   implementation("com.gradle:develocity-gradle-plugin:4.1.1")