style(sdk): update mypy to 0.991

[dmitryduev]

Description

...which also fixes the error seen in CI with the types-protobuf==4.21.0.1 release (see python/typeshed#8360 (comment))

Testing

How was this PR tested?

Checklist

• Include reference to internal ticket "Fixes WB-NNNN" and/or GitHub issue "Fixes #NNNN" (if applicable)
• Ensure PR title compliance with the conventional commits standards

[codecov]

Codecov Report

Merging #4546 (77dc647) into main (cb77d21) will increase coverage by 0.02%.
The diff coverage is 97.95%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4546      +/-   ##
==========================================
+ Coverage   83.08%   83.10%   +0.02%     
==========================================
  Files         259      259              
  Lines       32979    32984       +5     
==========================================
+ Hits        27402    27413      +11     
+ Misses       5577     5571       -6     

Flag	Coverage Δ
functest	56.95% <91.15%> (+0.28%)	⬆️
unittest	73.26% <93.19%> (-0.01%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
wandb/apis/reports/reports.py	88.93% <ø> (ø)
wandb/apis/reports/util.py	81.31% <ø> (ø)
wandb/docker/__init__.py	81.25% <ø> (ø)
wandb/filesync/upload_job.py	70.73% <0.00%> (ø)
wandb/integration/kfp/kfp_patch.py	76.04% <ø> (ø)
wandb/sdk/data_types/base_types/wb_value.py	93.87% <ø> (ø)
wandb/sdk/data_types/video.py	77.87% <0.00%> (ø)
wandb/sdk/interface/interface.py	96.93% <ø> (ø)
wandb/sdk/interface/interface_grpc.py	60.98% <ø> (ø)
wandb/sdk/interface/interface_relay.py	100.00% <ø> (ø)
... and 68 more

[kptkin]

🔥

[vanpelt]

Fun 🙃