Bump grpc-netty-shaded from 1.27.2 to 1.30.2 (#963)

* Bump grpc-netty-shaded from 1.27.2 to 1.31.1

Bumps [grpc-netty-shaded](https://github.com/grpc/grpc-java) from 1.27.2 to 1.31.1.
- [Release notes](https://github.com/grpc/grpc-java/releases)
- [Commits](grpc/grpc-java@v1.27.2...v1.31.1)

Signed-off-by: dependabot[bot] <support@github.com>

* Limited bump to 1.30.2

Signed-off-by: Nana-EC <56320167+Nana-EC@users.noreply.github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Nana-EC <56320167+Nana-EC@users.noreply.github.com>

hedera-mirror-test/pom.xml

@@ -34,9 +34,8 @@
         <dependency>
             <groupId>io.grpc</groupId>
             <artifactId>grpc-netty-shaded</artifactId>
-            <!-- grpc v 1.27.2 is the last known version that supports acceptance test running  -->
-            <!-- v 1.28.0 introduced a java.lang.NoSuchFieldError: NETTY_SHADED error https://github.com/grpc/grpc-java/issues/6982 -->
-            <version>1.27.2</version>
+            <!-- grpc v 1.30.2 is the last known version that supports acceptance test running  -->
+            <version>1.30.2</version>
         </dependency>
         <dependency>
             <groupId>io.cucumber</groupId>