chore: skip enforcer check on gRPC dependency (#2151)

Author: suztomo

pom.xml

@@ -168,6 +168,29 @@
           <showDeprecation>true</showDeprecation>
         </configuration>
       </plugin>
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-enforcer-plugin</artifactId>
+        <version>3.0.0-M3</version>
+        <executions>
+          <execution>
+            <id>enforce</id>
+            <configuration>
+              <rules>
+                <requireUpperBoundDeps>
+                  <excludes>
+                    <exclude>io.grpc:grpc-api</exclude>
+                    <exclude>io.grpc:grpc-core</exclude>
+                  </excludes>
+                </requireUpperBoundDeps>
+              </rules>
+            </configuration>
+            <goals>
+              <goal>enforce</goal>
+            </goals>
+          </execution>
+        </executions>
+      </plugin>
     </plugins>
   </build>