Fixed GitHub actions

- Updated Firefox dependency for UI tests
- Excluded unsupported versions of Python

.github/workflows/test.yml

@@ -14,6 +14,11 @@ jobs:
         include:
           - python-version: '3.7'
             django-version: '3.2'
+        exclude:
+          - python-version: '3.8'
+            django-version: 'main'
+          - python-version: '3.9'
+            django-version: 'main'
 
     services:
       postgres:
@@ -68,7 +73,7 @@ jobs:
     - name: Install Selenium dependencies
       run: |
         sudo apt-get -qq update
-        sudo apt-get -y install firefox-geckodriver xvfb
+        sudo apt-get -y install firefox xvfb
 
     - name: Install dependencies
       run: |

.pre-commit-config.yaml

@@ -2,7 +2,7 @@
 # See https://pre-commit.com/hooks.html for more hooks
 repos:
 - repo: https://github.com/pre-commit/pre-commit-hooks
-  rev: v4.2.0
+  rev: v4.4.0
   hooks:
     - id: check-merge-conflict
     - id: requirements-txt-fixer
@@ -14,7 +14,7 @@ repos:
     - id: check-added-large-files
     - id: debug-statements
 - repo: https://github.com/pycqa/isort
-  rev: "5.10.1"
+  rev: "5.12.0"
   hooks:
   - id: isort
     args: ["--profile", "black"]