Use log_async in WhylabsWriter

[richard-rogers]

Description

General Checklist

• Tests added for this feature/bug
  if it was a bug, test must cover it.
• Conform by the style guides, by using formatter
• Documentation updated
• (optional) Please add a label to your PR

[jamie256]

Another minor thing, your commit message has a typo:
"whylabs writier" should be Whylabs writer or use the class name WhylabsWriter

[jamie256]

Minor comments

[coveralls]

Pull Request Test Coverage Report for Build 1483377784

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 8 (0.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 79.852%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/whylogs/whylabs_client/wrapper.py	0	8	0.0%

Totals
Change from base Build 1477783271:	-0.1%
Covered Lines:	3661
Relevant Lines:	4451

---

💛 - Coveralls

[jamie256]

Looks Good!