Add arg to set oauth redirect host

[worgarside-dev]

Fixes #336

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

100.0% Coverage
0.0% Duplication

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (3c2340f) 96.73% compared to head (47b70ef) 96.73%.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #340   +/-   ##
========================================
  Coverage    96.73%   96.73%           
========================================
  Files           99       99           
  Lines         8025     8026    +1     
========================================
+ Hits          7763     7764    +1     
  Misses         262      262           

Flag	Coverage Δ
unittests	96.73% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
wg_utilities/clients/_google.py	100.00% <ø> (ø)
wg_utilities/clients/google_calendar.py	100.00% <ø> (ø)
wg_utilities/clients/google_drive.py	100.00% <ø> (ø)
wg_utilities/clients/google_fit.py	100.00% <ø> (ø)
wg_utilities/clients/google_photos.py	100.00% <ø> (ø)
wg_utilities/clients/monzo.py	100.00% <ø> (ø)
wg_utilities/clients/spotify.py	100.00% <ø> (ø)
wg_utilities/clients/truelayer.py	100.00% <ø> (ø)
wg_utilities/clients/oauth_client.py	99.06% <100.00%> (+<0.01%)	⬆️

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