fix

Author: iamgergo

.github/workflows/openapi.yml

@@ -73,7 +73,7 @@ jobs:
                 PHP_POST_PROCESS_FILE: "php-cs-fixer fix --allow-risky yes"
             run: |
                 java -jar "${{ runner.temp }}/openapi-generator-cli.jar" generate \
-                    --input-spec ./openapi.yaml \
+                    --input-spec ./openapi.yml \
                     --generator-name php-nextgen \
                     --output ./ \
                     --enable-post-process-file \