braviatv, nmap_tracker: use getmac for getting MAC addresses

[scop]

Description:

See discussion in #24601

Related issue (if applicable): #24601

Checklist:

• The code change is tested and works locally. nmap tracker only
• Local tests pass with tox. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly. Update and include derived files by running python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt by running python3 -m script.gen_requirements_all.
• Untested files have been added to .coveragerc.

If the code does not interact with devices:

• Tests have been added to verify that the new code works.

[ghost]

Hey there @robbiet480, mind taking a look at this pull request as its been labeled with a integration (braviatv) you are listed as a codeowner for? Thanks!

This is a automatic comment generated by codeowners-mention to help ensure issues and pull requests are seen by the right people.

[MartinHjelmare]

Looks good! Two small comments.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (dev@4e066f4). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff           @@
##             dev   #24628   +/-   ##
======================================
  Coverage       ?    94.1%           
======================================
  Files          ?      524           
  Lines          ?    40382           
  Branches       ?        0           
======================================
  Hits           ?    38000           
  Misses         ?     2382           
  Partials       ?        0

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (dev@4e066f4). Click here to learn what that means.
The diff coverage is n/a.

@@          Coverage Diff           @@
##             dev   #24628   +/-   ##
======================================
  Coverage       ?    94.1%           
======================================
  Files          ?      524           
  Lines          ?    40382           
  Branches       ?        0           
======================================
  Hits           ?    38000           
  Misses         ?     2382           
  Partials       ?        0

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 4e066f4...d424edd. Read the comment docs.