Make the limit on HTTP/2 metadata that can be handled configurable

[jaydunk]

Commit Message: Make the limit on HTTP/2 metadata configurable. Defaults to the current hardcoded value of 1 MiB.
Additional Description: The value can be configured through a new field on Http2ProtocolOptions
Risk Level: Low
Testing: Adds a unit test that covers the new logic in MetadataDecoder
Docs Changes: Added to new proto field but kept hidden to be consistent with other H2 metadata configuration
Release Notes: None
Platform Specific Features: None

[repokitteh-read-only]

Hi @jaydunk, welcome and thank you for your contribution.

We will try to review your Pull Request as quickly as possible.

In the meantime, please take a look at the contribution guidelines if you have not done so already.

🐱

Caused by: #37372 was opened by jaydunk.

see: more, trace.

[repokitteh-read-only]

CC @envoyproxy/api-shepherds: Your approval is needed for changes made to (api/envoy/|docs/root/api-docs/).
envoyproxy/api-shepherds assignee is @mattklein123
CC @envoyproxy/api-watchers: FYI only for changes made to (api/envoy/|docs/root/api-docs/).

🐱

Caused by: #37372 was opened by jaydunk.

see: more, trace.

[jaydunk]

/retest

[antoniovleonti]

/assign @yanavlasov

[mattklein123]

/wait

[github-actions]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 7 days if no further activity occurs. Please feel free to give a status update now, ping for review, or re-open when it's ready. Thank you for your contributions!

[yanavlasov]

Requested changes from author

/wait

[mattklein123]

LGTM please check CI and merge main.

/wait

[jaydunk]

/retest

[jaydunk]

@mattklein123 @yanavlasov Does this need one more approval? Looks like the CI is green now.

Request was addressed