Update mypy, remove unused ignores and casts

[hauntsaninja]

Are there changes in behavior for the user?

No

Checklist

• [x] I think the code is well written
• [x] Unit tests for the changes exist
• [x] Documentation reflects the changes

[webknjaz]

Looks like the 3.10 and 3.8 runs also need types-Pygments in their additional deps.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 62.60%. Comparing base (f40adb0) to head (f64186e). Report is 352 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1031   +/-   ##
=======================================
  Coverage   62.60%   62.60%           
=======================================
  Files          38       38           
  Lines        6721     6721           
  Branches      368      368           
=======================================
  Hits         4208     4208           
  Misses       2486     2486           
  Partials       27       27           

Flag	Coverage Δ
CI-GHA	62.57% <100.00%> (ø)
MyPy	25.92% <100.00%> (ø)
OS-Linux	99.26% <100.00%> (ø)
OS-Windows	99.59% <100.00%> (ø)
OS-macOS	99.03% <100.00%> (ø)
Py-3.10.11	98.94% <100.00%> (ø)
Py-3.10.14	99.15% <100.00%> (ø)
Py-3.11.9	99.15% <100.00%> (ø)
Py-3.12.5	99.15% <100.00%> (ø)
Py-3.13.0-rc.1	99.15% <100.00%> (ø)
Py-3.8.10	98.88% <100.00%> (ø)
Py-3.8.18	99.09% <100.00%> (ø)
Py-3.9.13	98.88% <100.00%> (ø)
Py-3.9.19	99.09% <100.00%> (ø)
Py-pypy7.3.11	99.40% <50.00%> (ø)
Py-pypy7.3.16	99.43% <50.00%> (ø)
VM-macos-latest	99.03% <100.00%> (ø)
VM-ubuntu-latest	99.26% <100.00%> (ø)
VM-windows-latest	99.59% <100.00%> (ø)

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[bdraco]

skip label added as a workaround since the bot is currently not working as expected

[bdraco]

mypy already got updated so I removed that