Bump actions/checkout from 2 to 3 (#141)

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...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/cancel-self.yml

@@ -8,7 +8,7 @@ jobs:
     name: Task
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Test Step
         uses: ./ # Uses an action in the root directory
         with:

.github/workflows/lint.yml

@@ -12,7 +12,7 @@ jobs:
       - uses: actions/setup-node@v3.0.0
         with:
           node-version: v14
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - run: yarn
       - run: yarn build
       - run: yarn format-check

.github/workflows/main.yml

@@ -10,7 +10,7 @@ jobs:
     steps:
       # To use this repository's private action, you must check out the repository
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
       - name: Test Step
         uses: ./ # Uses an action in the root directory
         with: