Fix some spelling problems

Codecov Report

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

Flag	Coverage Δ
unittests	`98.19% <100.00%> (ø)`

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Files with missing lines	Coverage Δ
microbootstrap/bootstrappers/litestar.py	`97.18% <100.00%> (ø)`
...obootstrap/instruments/opentelemetry_instrument.py	`100.00% <100.00%> (ø)`