chore(deps): update nullaway.version to v0.13.7

Author: renovate[bot]

pom.xml

@@ -43,7 +43,7 @@
     <maven-source-plugin.version>3.3.1</maven-source-plugin.version>
     <maven-surefire-plugin.version>3.5.3</maven-surefire-plugin.version>
     <nexus-staging-maven-plugin.version>1.7.0</nexus-staging-maven-plugin.version>
-    <nullaway.version>0.12.8</nullaway.version>
+    <nullaway.version>0.13.7</nullaway.version>
     <sonar-maven-plugin.version>5.1.0.4751</sonar-maven-plugin.version>
     <spotbugs-annotations.version>4.9.4</spotbugs-annotations.version>
     <spotless-maven-plugin.version>2.46.1</spotless-maven-plugin.version>