feat: add bouncer URL override, disable internal bouncer if using pgdog

[beaugunderson]

https://canvasmedical.atlassian.net/browse/KOALA-3815

[codecov]

Codecov Report

❌ Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 93.39%. Comparing base (ce556ef) to head (1681dd7).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
plugin_runner/installation.py	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1536      +/-   ##
==========================================
- Coverage   93.39%   93.39%   -0.01%     
==========================================
  Files         481      481              
  Lines       21555    21557       +2     
  Branches      999      999              
==========================================
+ Hits        20132    20133       +1     
- Misses       1272     1273       +1     
  Partials      151      151              

Flag	Coverage Δ
plugin-abnormal_lab_task_notification	100.00% <ø> (ø)
plugin-api_samples	33.33% <ø> (ø)
plugin-appointment_coverage_label	100.00% <ø> (ø)
plugin-coverage_metadata_sync	100.00% <ø> (ø)
plugin-my_first_plugin	100.00% <ø> (ø)
plugin-patient_summary_chart_groups	100.00% <ø> (ø)
plugin-preact_hello_world	100.00% <ø> (ø)
plugin-send_all_prescriptions	100.00% <ø> (ø)
plugin-simple_note_button_plugin	100.00% <ø> (ø)
plugin-supervising_provider_prescribe	100.00% <ø> (ø)
plugin-supervising_provider_prescribe_protocol	100.00% <ø> (ø)
plugin-upsert_patient_metadata	100.00% <ø> (ø)
plugin-vitals_visualizer_plugin	98.43% <ø> (ø)
py3.11	93.42% <0.00%> (-0.01%)	⬇️
py3.12	93.42% <0.00%> (-0.01%)	⬇️
sdk-core	93.42% <0.00%> (-0.01%)	⬇️

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