Add support for SRV and TXT in custom DNS zones

[Terrance]

Fixes #1587.

I wonder if there's a better way to do this more generically, but for now I've just added SRV and TXT explicitly, tests included.

[kwitsch]

Thanks for the contribution. 👍

If you fix the failing workflows I'll merge it.

[Terrance]

Ah, I saw the option to format but not lint as it wasn't set up as a VSCode build task. Should hopefully be happy now.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.03%. Comparing base (fe84ab8) to head (1f2bb00).
Report is 118 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1588      +/-   ##
==========================================
+ Coverage   93.88%   94.03%   +0.14%     
==========================================
  Files          78       79       +1     
  Lines        6361     5078    -1283     
==========================================
- Hits         5972     4775    -1197     
+ Misses        300      213      -87     
- Partials       89       90       +1     

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[kwitsch]

Ah, I saw the option to format but not lint as it wasn't set up as a VSCode build task. Should hopefully be happy now.

I forgot to add it, sorry about that. 🫣

[kwitsch]

👍