Update data containers in QUIC module

[maskit]

We've been using std::something and old TS data containers inconsistently to implement QUIC quickly, but some of them are not recommended. Since it seems like we have rough consensus about containers, we should replace them with appropriate ones.

[github-actions]

This issue has been automatically marked as stale because it has not had recent activity. Marking it stale to flag it for further consideration by the community.

[maskit]

Closing this since we are dropping our own QUIC implementation and a lot of code that use standard containers will be removed.