Update ci.yml

Signed-off-by: NAKANISHI Kiyomaro <kiyomaro092@gmail.com>

Author: Nakakiyo092

.github/workflows/ci.yml

@@ -69,6 +69,7 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -r requirements.txt
+          pip install pylint
 
       - name: Run pylint error check
         run: |