ci: update actions versions

.github/workflows/main.yml

@@ -1,10 +1,6 @@
-# This is a basic workflow to help you get started with Actions
-
 name: CI
 
-# Controls when the action will run.
 on:
-  # Triggers the workflow on push or pull request events but only for the main branch
   push:
     branches: [main, develop]
     paths:
@@ -21,11 +17,8 @@ on:
       - "tests/**"
       - "pyproject.toml"
       - "requirements.txt"
-
-  # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
-# A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   tests:
     runs-on: ubuntu-latest
@@ -34,14 +27,14 @@ jobs:
         python-version: [3.7, 3.8, 3.9]
         test-type: ["unit", "system"]
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: ${{ matrix.python-version }}
 
-      - uses: actions/cache@v2
+      - uses: actions/cache@v3
         with:
           path: |
             ~/.cache/dnnv
@@ -109,4 +102,4 @@ jobs:
           coverage xml
 
       - name: Upload Coverage to Codecov
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v3