Bump actions/checkout from 1 to 2.4.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 1 to 2.4.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v1...v2.4.0)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -21,7 +21,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           go-version: 1.15
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.4.0
       - run: make build
       - uses: actions/upload-artifact@v1
         with:
@@ -37,7 +37,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           go-version: 1.15
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.4.0
       - env:
           VIMEO_TEST_API_KEY: ${{ secrets.VIMEO_ACCESS_TOKEN }}
           YOUTUBE_TEST_API_KEY: ${{ secrets.YOUTUBE_API_KEY }}
@@ -52,7 +52,7 @@ jobs:
       - uses: actions/[email protected]
         with:
           go-version: 1.15
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v2.4.0
 
       - name: Go mod
         env:

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
     timeout-minutes: 10
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v2.4.0
 
       # Required for the changelog to work correctly
       - run: git fetch --prune --unshallow