chore(deps): update dependency com.coveo:fmt-maven-plugin to v2.13 (#797)

Co-authored-by: Emily Ball <emilyball@google.com>

Author: renovate-bot

google-auth-library-java/bom/pom.xml

@@ -100,7 +100,7 @@
       <plugin>
         <groupId>com.coveo</groupId>
         <artifactId>fmt-maven-plugin</artifactId>
-        <version>2.12</version>
+        <version>2.13</version>
         <configuration>
           <verbose>true</verbose>
         </configuration>

google-auth-library-java/pom.xml

@@ -207,7 +207,7 @@
         <plugin>
           <groupId>com.coveo</groupId>
           <artifactId>fmt-maven-plugin</artifactId>
-          <version>2.12</version>
+          <version>2.13</version>
           <configuration>
             <verbose>true</verbose>
           </configuration>