deps: Update dependency com.google.errorprone:error_prone_core to v2.38.0

Author: renovate-bot

pom.xml

@@ -59,7 +59,7 @@
     <github.global.server>github</github.global.server>
     <site.installationModule>alloydb-connector-parent</site.installationModule>
     <project.javadoc.protobufBaseURL>https://googleapis.dev/java/google-api-grpc/latest</project.javadoc.protobufBaseURL>
-    <error-prone.version>2.31.0</error-prone.version>
+    <error-prone.version>2.38.0</error-prone.version>
     <error-prone-annotations.version>2.38.0</error-prone-annotations.version>
     <bouncycastle.version>1.80</bouncycastle.version>
     <junit.jupiter.version>5.11.4</junit.jupiter.version>