ci: generate Passport keys before phpunit

The `api` guard is wired to the Passport driver, which boots the
oauth2-server CryptKey at request resolution time. Without
oauth-private.key / oauth-public.key under storage/, even tests
that never touch the OAuth flow fall over with `LogicException:
Invalid key supplied`. Keys are (correctly) gitignored, so CI
needs to generate them itself before running the suite.

Author: imanimanyara

.github/workflows/ci.yml

@@ -59,6 +59,10 @@ jobs:
         if: steps.precheck.outputs.skip == 'false'
         run: php artisan key:generate
 
+      - name: Passport keys
+        if: steps.precheck.outputs.skip == 'false'
+        run: php artisan passport:keys --force
+
       - name: PHPUnit (tests)
         if: steps.precheck.outputs.skip == 'false'
         run: ./vendor/bin/phpunit