Bump actions/checkout from 3.0.2 to 3.1.0

Bumps [actions/checkout](https://github.com/actions/checkout) from 3.0.2 to 3.1.0.
- [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/v3.0.2...v3.1.0)

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

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

.github/workflows/coverage.yaml

@@ -23,7 +23,7 @@ jobs:
       RUST_BACKTRACE: full
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.1.0
         with:
           persist-credentials: false
 

.github/workflows/main.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.0.2
+      - uses: actions/checkout@v3.1.0
       # Because we use nightly features for building docs,
       # using --all-features will fail without nightly toolchain.
       - uses: actions-rs/toolchain@v1.0.7
@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.0.2
+      - uses: actions/checkout@v3.1.0
         with:
           persist-credentials: false
 
@@ -68,7 +68,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.0.2
+      - uses: actions/checkout@v3.1.0
         with:
           persist-credentials: false
 
@@ -90,7 +90,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3.0.2
+      - uses: actions/checkout@v3.1.0
         with:
           persist-credentials: false
 
@@ -109,7 +109,7 @@ jobs:
     runs-on: ubuntu-latest
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v3.0.2
+      - uses: actions/checkout@v3.1.0
       - uses: reviewdog/action-actionlint@v1.32.0
         with:
           level: warning