ci(mypy): remove type callable ignores (backport #4253)

[mergify]

This is an automatic backport of pull request #4253 done by Mergify.
Cherry-pick of 0ba3e29 has failed:

On branch mergify/bp/1.5/pr-4253
Your branch is up to date with 'origin/1.5'.

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Unmerged paths:
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	both modified:   ddtrace/profiling/collector/memalloc.py
	both modified:   ddtrace/profiling/exporter/http.py

no changes added to commit (use "git add" and/or "git commit -a")

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/github/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

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[Yun-Kim]

Closing as fix is unnecessary.

[mergify]

@mergify[bot] this pull request is now in conflict 😩