Fix various minor issues (#545)

* Add absolute URL to power tests

* Update to target Python 3.10

* Return user to current page when clicking 'mark reviewed'

* Add units to power test record detail and form

I'm a bad scientist (coz I'm an engineer)

* Allow a higher value in PSSC fields

* Default venue to event venue in EC/PT

* Fix population of initial venue values for EC/PT

* Add link to create power test from EC detail

* Do not set power plan field to required on RA

"This might be a problem if the risk assessment is being done by one person and the power plan by another."

* Default power MIC to MIC

* Implement some suggestions from the Doctor

* Prevent checking in to cancelled events and dry hires

Will close #539

* Exclude dry hires from H&S overview list

* Add "ex VAT" tooltips to asset purchase price and replacement cost

* Automagically clear and focus ID field when audit modal closes

Closes #533

* Delete unused things

* Allow two decimal places in cable length, show training item IDs in selectpicker

Will close #540

* Fix #524 500 Error when viewing qualification list for items nobody is qualified in

* Update README.md

* Add a guard against nulls in recent changes

Maybe fixes #537 I'm unable to replicate locally

* Turn down verbosity of CI tests, fix tests, potential speedup

* Squash migration

* Add encoding to open

* Update to v3 upload-artifact

Resolves a deprecation warning

versioning/urls.py

@@ -30,15 +30,15 @@ for app in [apps.get_app_config(label) for label in ("RIGS", "assets", "training
         modelname = model.__name__.lower()
         if appname == 'rigboard':
             urlpatterns += [
-                path('{}/<str:pk>/history/'.format(modelname),
-                     permission_required_with_403('{}.change_{}'.format(app.label, modelname))(
+                path(f'{modelname}/<str:pk>/history/',
+                     permission_required_with_403(f'{app.label}.change_{modelname}')(
                          views.VersionHistory.as_view()),
-                     name='{}_history'.format(modelname), kwargs={'model': model, 'app': appname, }),
+                     name=f'{modelname}_history', kwargs={'model': model, 'app': appname, }),
             ]
         else:
             urlpatterns += [
-                path('{}/{}/<str:pk>/history/'.format(appname, modelname),
-                     permission_required_with_403('{}.change_{}'.format(app.label, modelname))(
+                path(f'{appname}/{modelname}/<str:pk>/history/',
+                     permission_required_with_403(f'{app.label}.change_{modelname}')(
                          views.VersionHistory.as_view()),
-                     name='{}_history'.format(modelname), kwargs={'model': model, 'app': appname, }),
+                     name=f'{modelname}_history', kwargs={'model': model, 'app': appname, }),
             ]