Update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/main.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-20.04
     container: cypress/browsers:node14.15.0-chrome86-ff82
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Cypress run
         uses: cypress-io/github-action@v2
         with:
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-20.04
     container: cypress/browsers:node14.15.0-chrome86-ff82
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v5
       - name: Cypress run
         run: |
           npm i