deps: update dependency com.google.auto.value:auto-value to v1.7.4 (#1031)

Co-authored-by: Mira Leung <miraleung@users.noreply.github.com>
Co-authored-by: Elliotte Rusty Harold <elharo@users.noreply.github.com>
Co-authored-by: Jeff Ching <chingor@google.com>

Author: 4 people

samples/pom.xml

@@ -25,7 +25,7 @@
     <dependency>
       <groupId>com.google.auto.value</groupId>
       <artifactId>auto-value</artifactId>
-      <version>1.7</version>
+      <version>1.7.4</version>
     </dependency>
     <dependency>
       <groupId>junit</groupId>