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

RIGS/tests/pages.py

@@ -114,7 +114,7 @@ class CreateEvent(FormPage):
     }
 
     def select_event_type(self, type_name):
-        self.find_element(By.XPATH, '//button[.="{}"]'.format(type_name)).click()
+        self.find_element(By.XPATH, f'//button[.="{type_name}"]').click()
 
     def item_row(self, ID):
         return rigs_regions.ItemRow(self, self.find_element(By.ID, "item-" + ID))

RIGS/tests/test_unit.py

@@ -259,7 +259,7 @@ class TestPrintPaperwork(TestCase):
 
 def test_login_redirect(client, django_user_model):
     request_url = reverse('event_embed', kwargs={'pk': 1})
-    expected_url = "{0}?next={1}".format(reverse('login_embed'), request_url)
+    expected_url = f"{reverse('login_embed')}?next={request_url}"
 
     # Request the page and check it redirects
     response = client.get(request_url, follow=True)
@@ -372,7 +372,8 @@ def test_ra_redirect(admin_client, admin_user, ra):
 
 
 class TestMarkdownTemplateTags(TestCase):
-    markdown = open(os.path.join(settings.BASE_DIR, "RIGS/tests/sample.md")).read()
+    with open(os.path.join(settings.BASE_DIR, "RIGS/tests/sample.md"), encoding="utf-8") as f:
+        markdown = f.read()
 
     def test_html_safe(self):
         html = markdown_filter(self.markdown)