CI: Use action to install ImageMagick

Author: adrien-berchet

.github/workflows/run-tox.yml

@@ -27,12 +27,12 @@ jobs:
       uses: actions/setup-python@v6
       with:
         python-version: ${{ matrix.python-version }}
+    - uses: mfinelli/setup-imagemagick@v7
     - name: Cache APT Packages
       uses: awalsh128/cache-apt-pkgs-action@latest
       with:
         packages:
           poppler-utils
-          imagemagick
         version: 1.1
     - name: Cache tox and precommit environments
       uses: actions/cache@v5