Bump actions/checkout from 5 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...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] <support@github.com>

Author: dependabot[bot]

.github/workflows/cd.yml

@@ -12,7 +12,7 @@ jobs:
     name: Cargo Checks
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/rust_toolchain/
       - name: Check formatting
         run: cargo fmt --check
@@ -46,7 +46,7 @@ jobs:
           - simple
           - tailwind
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/rust_toolchain/
       - name: Build example ${{ matrix.example }}
         run: |
@@ -59,7 +59,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ cargo_checks, test_examples ]
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: ./.github/actions/rust_toolchain/
       - name: Publish crate leptos-struct-table
         uses: katyo/publish-crates@v2

.github/workflows/ci.yml

@@ -26,7 +26,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@master

.github/workflows/tests.yml

@@ -17,7 +17,7 @@ jobs:
     name: Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: actions-rs/toolchain@v1
         with:
           toolchain: nightly