Convert one Markdown file from CRLF to LF

[musicinmybrain]

Convert docs/api/pydantic_extra_types_mac_address.md from CRLF (“DOS”) to LF (”UNIX”) line terminations, matching all other files in Pydantic.

Change Summary

Change the line termination in docs/api/pydantic_extra_types_mac_address.md from CRLF to LF, matching every other file in the repository.

Related issue number

N/A

Checklist

• The pull request title is a good summary of the changes - it will be used in the changelog
• Unit tests for the changes exist N/A
• Tests pass on CI
• Documentation reflects the changes where applicable N/A
• My PR is ready to review, please add a comment including the phrase "please review" to assign reviewers

Selected Reviewer: @Kludex

[codspeed-hq]

CodSpeed Performance Report

Merging #8731 will not alter performance

_{Comparing musicinmybrain:dos2unix (b7e2f81) with main (3fda9d6)}

Summary

✅ 10 untouched benchmarks

[musicinmybrain]

please review

[sydney-runkle]

Great, thanks!