fix: change pep8 to pycodestyle for reviewdog

Signed-off-by: Elizabeth J Lee <[email protected]>

Author: ejlee3

.github/workflows/reviewdog.yaml

@@ -32,8 +32,7 @@ jobs:
             pip install bandit && bandit --version
         - name: Install pep8
           run: |
-              sudo apt install pep8
-              shell: /usr/bin/bash -e (0)
+              sudo apt install pycodestyle
         - name: Install hadolint
           env:
             HADOLINT_VERSION: v1.16.3