feat: http-agent retries calls

[krpeacock]

Description

Since there can be occasional errors while calling the IC that can simply be resolved by retrying, feature adds a default of 3 retries after an initial failure. The promise will stay pending until either the request resolves, or the retries have completed, after which it will throw an error.

Adds retryTimes to HttpAgentOptions type. Error messages will be logged under console.warn until the final retry.

Questions for discussion:

• Should we have more configuration? E.G.
  • retry: { disableRetry, retryTimes, suppressWarnings, concurrent }

Fixes SDK-724

How Has This Been Tested?

New unit tests and e2e test in Counter

Checklist:

• My changes follow the guidelines in CONTRIBUTING.md.
• The title of this PR complies with Conventional Commits.
• I have edited the CHANGELOG accordingly.
• I have made corresponding changes to the documentation.

[krpeacock]

I've disabled the problem tests that weren't related to changes here. I'll create a separate PR fixing them