chore(sdk): accept newer typing-extensions versions

[connor-mccarthy]

Description of your changes:
Mirrors changes from #7632 in v1.x. Needed to unblock TFX (reference:
#7632 (comment)).

Checklist:

• The title for your pull request (PR) should follow our title convention. Learn more
  about the pull request title convention used in this
  repository.

[google-oss-prow]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[connor-mccarthy]

/test all

[chensun]

/lgtm
/approve

Thanks!

[google-oss-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: chensun

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[guimou]

@connor-mccarthy Hi! Any target for this to be released (in 1.8.13 I guess)?

[connor-mccarthy]

Hi @guimou. We have a few more fixes we are looking to include in the 1.8.13 release. I suspect we will be able to release by the end of this month.

[guimou]

OK, thanks a lot!