build(deps): bump actions/checkout from 5 to 6 (#109)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/check.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-24.04
     timeout-minutes: 20
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy, rustfmt
@@ -27,7 +27,7 @@ jobs:
       RUSTFLAGS: "-D warnings"
       RUSTDOCFLAGS: "-D warnings"
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy, rustfmt

.github/workflows/create-release.yml

@@ -12,7 +12,7 @@ jobs:
   create-release:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: taiki-e/create-gh-release-action@v1
         with:
           changelog: CHANGELOG.md