Upgrade actions with deprecation warnings

Author: timkpaine

.github/workflows/ci.yml

@@ -41,11 +41,11 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         submodules: recursive
 
-    - uses: actions/setup-python@v2
+    - uses: actions/setup-python@v4
 
     - name: Install
       run: |
@@ -87,7 +87,7 @@ jobs:
       contents: write
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
        fetch-depth: 0
        token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/licensing.yml

@@ -25,7 +25,7 @@ jobs:
   Checks:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - uses: SymbiFlow/actions/checks@main
       with: