Bump actions/checkout from 3 to 4

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '4'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/lint.yml

@@ -13,6 +13,6 @@ jobs:
       - uses: maxim-lobanov/setup-xcode@v1
         with:
           xcode-version: '14'
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - run: swiftlint Sources/ example/
       - run: pod lib lint --allow-warnings

.github/workflows/tag_and_deploy_to_cocoapods.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: macos-13
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
 

.github/workflows/tests.yml

@@ -21,7 +21,7 @@ jobs:
           xcode-version: '15.2'
 
       - name: Checkout project sources
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
         # This step and the Install Colima step have been modified to address a
         # Python error started 3.11.2024, emitting the following error: