chore(deps): bump actions/checkout from 2 to 3 (#36)

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/conda.yml

@@ -23,7 +23,7 @@ jobs:
         shell: "bash -l {0}"
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Get conda
         uses: conda-incubator/setup-miniconda@v2.1.1

.github/workflows/wheels.yml

@@ -20,7 +20,7 @@ jobs:
     name: Build SDist
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         submodules: true
 
@@ -44,7 +44,7 @@ jobs:
         os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         submodules: true