Bump actions/checkout from 3 to 4 (#413)

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

---
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/lint.yml

@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repository code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Setup Python (faster than using Python container)
       - name: Setup Python

.github/workflows/python-publish.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v4
       with:

.github/workflows/tests.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout repository code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       # Setup Python (faster than using Python container)
       - name: Setup Python
@@ -66,7 +66,7 @@ jobs:
           node-version: 18
 
       - name: Checkout PS
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: smogon/pokemon-showdown
           path: pokemon-showdown

.github/workflows/update-data.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: master
       - name: Run update script