Bump actions/checkout from 2 to 3 (#98)

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/release.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Teslamate
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: teslamate
       - name: Get latest release
@@ -45,7 +45,7 @@ jobs:
           draft: false
           prerelease: false
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           path: repo
           repository: matt-FFFFFF/hassio-addon-repository

.github/workflows/teslamate.yml

@@ -29,7 +29,7 @@ jobs:
       fail-fast: true
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3
       with:
         submodules: 'true'
     - name: Set TESLAMATE_TAG