Bump actions/checkout from 3.1.0 to 3.2.0 (#1607)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.1.0 to 3.2.0.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@93ea575...755da8c)

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

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

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

Author: dependabot[bot]

.github/workflows/specparser.yml

@@ -13,10 +13,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
+    - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
       with:
         fetch-depth: 2
-    - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
+    - uses: actions/checkout@755da8c3cf115ac066823e79a1e1788f8940201b
       with:
         repository: dart-lang/sdk
         path: sdk