chore(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/build-android-release.yml

@@ -9,7 +9,7 @@ jobs:
     name: Build Android Example App (release)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
 
       - name: Install npm dependencies (bun)

.github/workflows/build-android.yml

@@ -31,7 +31,7 @@ jobs:
     name: Build Android Example App
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
 
       - name: Install npm dependencies (bun)

.github/workflows/build-ios.yml

@@ -36,7 +36,7 @@ jobs:
     name: Build iOS Example App
     runs-on: macOS-15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
 
       - name: Install npm dependencies (bun)

.github/workflows/lint-cpp.yml

@@ -36,7 +36,7 @@ jobs:
           - "package/android/src/main/cpp"
           - "package/cpp"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
 
       - name: Install npm dependencies (bun)

.github/workflows/lint-typescript.yml

@@ -36,7 +36,7 @@ jobs:
     name: Compile TypeScript (tsc)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
       - uses: reviewdog/action-setup@v1
 
@@ -61,7 +61,7 @@ jobs:
     name: Lint TypeScript (eslint, prettier)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: oven-sh/setup-bun@v2
 
       - name: Install npm dependencies (bun)

.github/workflows/update-lockfiles.yml

@@ -23,7 +23,7 @@ jobs:
     if: github.actor == 'dependabot[bot]'
     runs-on: macOS-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
           ref: ${{ github.event.pull_request.head.ref }}