[1.3] Bump netty to match version from core's buildSrc/version.properties and bump grpc to 1.56.1

[cwperks]

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This PR will match the build.gradle file on main here: https://github.com/opensearch-project/performance-analyzer-rca/blob/main/build.gradle#L373-L377

The dependencies on main should be updated or dependabot added to this repo if its not enabled already.

Without this change performance-analyzer-rca is being bundled with netty-codec-http-4.1.87.Final.jar, netty-codec-http2-4.1.87.Final.jar and netty-handler-4.1.87.Final.jar which are affected by https://avd.aquasec.com/nvd/cve-2024-29025, GHSA-xpw8-rcwv-8f8p and https://avd.aquasec.com/nvd/cve-2023-34462 respectively.

Check List

• Backport Labels added.
• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
• Commits are signed per the DCO using --signoff

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[bbarani]

@sgup432 can you please review it?

[sgup432]

@cwperks
I see main branch has implementation 'io.grpc:grpc-stub:1.52.1', do we need to update it to 1.56.1 there as well?

[cwperks]

@sgup432 Yes, main needs to be updated as well. I opened up a PR to add dependabot to automatically monitor for outdated dependencies and create PRs.

In the previous commit I made this PR exactly match main and it gave the following error:

Execution failed for task ':updateShas'.
> Could not resolve all dependencies for configuration ':runtimeClasspath'.
   > Conflict(s) found for the following module(s):
       - io.grpc:grpc-api between versions 1.56.1 and 1.52.1
     Run with:
         --scan or
         :dependencyInsight --configuration runtimeClasspath --dependency io.grpc:grpc-api
     to get more insight on how to solve the conflict.

ref: https://github.com/opensearch-project/performance-analyzer-rca/actions/runs/8761123266/job/24047189857?pr=546