chore(ci): bump actions version

.github/workflows/ci.yml

@@ -9,10 +9,10 @@ jobs:
 
     steps:
       - name: Check out repository code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v5
         with:
           python-version: 3.7
 
@@ -23,7 +23,7 @@ jobs:
 
       - name: Restore virtualenv from cache
         id: cache
-        uses: actions/cache@v1
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pypoetry/virtualenvs
           key: poetry-${{ hashFiles('poetry.lock') }}