Fix syntax

config/c-code/tests.yml.j2

@@ -260,7 +260,7 @@ jobs:
           unzip -n dist/%(package_name)s-*whl -d src
           # Use "--pre" here because dependencies with support for this future
           # Python release may only be available as pre-releases
-          txt pip install --pre -U -e .[test]
+          pip install --pre -U -e .[test]
 {% endif %}
       - name: Install %(package_name)s
 {% if with_future_python %}