chore(deps): bump actions/checkout from 2.4.0 to 3 (#73)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2.4.0 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.4.0...v3)

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

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/bundlewatch.yml

@@ -5,7 +5,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3
       - uses: actions/setup-node@v2.5.1
         with:
           node-version: 14.x

.github/workflows/ci.yml

@@ -10,7 +10,7 @@ jobs:
         node-version: [12.x, 14.x, 16.x]
 
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v3
 
       - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v2.5.1

.github/workflows/codeql-analysis.yml

@@ -24,7 +24,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2.4.0
+      uses: actions/checkout@v3
 
     - name: Initialize CodeQL
       uses: github/codeql-action/init@v1