Installe manuellement geckodriver dans la CI

L'image ubuntu-22.04 ne contient plus geckodriver, ni Firefox (cf
https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu2204-Readme.md
vs
https://github.com/actions/runner-images/blob/main/images/linux/Ubuntu1804-Readme.md).

.github/workflows/ci.yml

@@ -8,6 +8,7 @@ env:
   MARIADB_VERSION: "10.4.10"
   COVERALLS_VERSION: "3.3.1" # check if Coverage needs to be also updated in requirements-ci.txt
   BLACK_VERSION: "22.6.0" # needs to be also updated in requirements-dev.txt and .pre-commit-config.yaml
+  GECKODRIVER_VERSION: "0.31.0"
 
   # As GitHub Action does not allow environment variables
   # to be used in services definitions, these are only for
@@ -176,6 +177,15 @@ jobs:
           mysql database: "ci_db_name"
           mysql root password: "ci_root_password"
 
+      - name: Install Firefox
+        run: sudo apt-get update && sudo apt-get install firefox
+
+      - name: Install Geckodriver
+        run: |
+          wget https://github.com/mozilla/geckodriver/releases/download/v${{ env.GECKODRIVER_VERSION }}/geckodriver-v${{ env.GECKODRIVER_VERSION }}-linux64.tar.gz
+          mkdir geckodriver
+          tar -xzf geckodriver-v${{ env.GECKODRIVER_VERSION }}-linux64.tar.gz -C geckodriver
+
       - name: Checkout
         uses: actions/checkout@v2
 
@@ -233,7 +243,7 @@ jobs:
 
       - name: Run tests for ${{ matrix.module }}
         run: |
-          export PATH="$PATH:$GECKOWEBDRIVER"
+          export PATH="$PATH:$PWD/geckodriver"
           coverage run --source='.' manage.py test -v=2 --keepdb --settings zds.settings.ci_test ${{ matrix.module }}
 
       - name: Analyze coverage