Allow aha provisioning tools to emit only the URL (SYN-5301)

[vEpiphyte]

No description provided.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.10 ⚠️

Comparison is base (5972a0f) 97.29% compared to head (afb1aa0) 97.19%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #3125      +/-   ##
==========================================
- Coverage   97.29%   97.19%   -0.10%     
==========================================
  Files         222      222              
  Lines       44174    44188      +14     
==========================================
- Hits        42977    42950      -27     
- Misses       1197     1238      +41     

Flag	Coverage Δ
linux	97.19% <100.00%> (+<0.01%)	⬆️
linux_replay	?

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Impacted Files	Coverage Δ
synapse/tools/aha/provision/service.py	97.91% <100.00%> (+8.17%)	⬆️
synapse/tools/aha/provision/user.py	100.00% <100.00%> (ø)

... and 9 files with indirect coverage changes

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[invisig0th]

Would it be worth discussing just making this be how the tool operates by default?

[invisig0th]

maybe we should just make this be how it works by default?

[vEpiphyte]

discussed question; going to leave the current behavior in place.