Fix non App Engine imports

[notvictorl]

Recent changes to imports on clusterfuzz._internal.bot are causing 500 failures since clusterfuzz._internal.bot is excluded from App Engine context. 4140da0

Fixing clusterfuzz._internal.bot imports to be function-level instead of file-level.

b/552012304

[dylanjew]

Are you able to repro the bug before and after you push this PR to dev?

[notvictorl]

Are you able to repro the bug before and after you push this PR to dev?

Yeah, I can try this on dev (and intentionally break dev for a short bit)

[ViniciustCosta]

Thanks for reverting the changes!

Since this issue hit production, I assume you weren't able to test #5387 in dev? If so, could you try to do it?

[notvictorl]

Okay tested on dev and this change fixes the issue of the previous import changes. dev went from 500 error like production back to working.

397ea89

[dylanjew]

thanks for testing this!

[ViniciustCosta]

Okay tested on dev and this change fixes the issue of the previous import changes. dev went from 500 error like production back to working.

397ea89

Thanks!

However, what I meant was testing in dev the actual intended changes (the build-related changes) of that PR and verify if they are working as expected. I will merge this to ensure master is not broken, but it would be great if you could check that before the next release :)