Bump actions/checkout from 2 to 3 (#62)

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](https://github.com/actions/checkout/compare/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>

.github/workflows/ci.yaml

@@ -14,7 +14,7 @@ jobs:
   build:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v2"
+      - uses: "actions/checkout@v3"
       - uses: "actions/cache@v2"
         with:
           path: "~/go/pkg/mod"
@@ -31,7 +31,7 @@ jobs:
     needs: "build"
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v2"
+      - uses: "actions/checkout@v3"
       - uses: "actions/cache@v2"
         with:
           path: "~/go/pkg/mod"
@@ -50,7 +50,7 @@ jobs:
   lint:
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v2"
+      - uses: "actions/checkout@v3"
       - uses: "actions/cache@v2"
         with:
           path: "~/go/pkg/mod"
@@ -66,7 +66,7 @@ jobs:
     needs: "build"
     runs-on: "ubuntu-latest"
     steps:
-      - uses: "actions/checkout@v2"
+      - uses: "actions/checkout@v3"
       - uses: "actions/cache@v2"
         with:
           path: "~/go/pkg/mod"