Update Action example to use checkout@v3 (#3563)

Latest version of `actions/checkout` is v3 (or rather v3.3) so let's use that in the example now.
psf · Feb 14, 2023 · d9b8a64 · d9b8a64
1 parent 9c8464c
commit d9b8a64
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/docs/integrations/github_actions.md b/docs/integrations/github_actions.md
@@ -24,7 +24,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: psf/black@stable
 ```