Typo fixes

[Kielek]

Fixes: N/A.

Changes

Typo fixes.

For significant contributions please make sure you have completed the following items:

• [ ] Appropriate CHANGELOG.md updated for non-trivial changes
• [ ] Design discussion issue #
• [ ] Changes in public API reviewed

[codecov]

Codecov Report

Merging #3459 (6a49bba) into main (5c9a5c6) will increase coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3459      +/-   ##
==========================================
+ Coverage   86.36%   86.41%   +0.05%     
==========================================
  Files         265      265              
  Lines        9602     9602              
==========================================
+ Hits         8293     8298       +5     
+ Misses       1309     1304       -5     

Impacted Files	Coverage Δ
...elemetry/Metrics/MeterProviderBuilderExtensions.cs	63.82% <ø> (ø)
...emetry.Api/Internal/OpenTelemetryApiEventSource.cs	79.41% <0.00%> (-2.95%)	⬇️
...metryProtocol/Implementation/ActivityExtensions.cs	95.60% <0.00%> (+1.09%)	⬆️
src/OpenTelemetry/BatchExportProcessor.cs	84.11% <0.00%> (+1.86%)	⬆️
...tation/OpenTelemetryProtocolExporterEventSource.cs	85.00% <0.00%> (+10.00%)	⬆️