Bump actions/checkout from 4 to 5 in the github-actions group (#158)

Bumps the github-actions group with 1 update: [actions/checkout](https://github.com/actions/checkout).


Updates `actions/checkout` from 4 to 5
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: github-actions
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -13,7 +13,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           sdk: dev

.github/workflows/dart.yml

@@ -25,7 +25,7 @@ jobs:
         sdk: [2.14.4, stable, beta, dev]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           sdk: ${{ matrix.sdk }}
@@ -47,7 +47,7 @@ jobs:
         flavor: [raw]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           sdk: ${{ matrix.sdk }}
@@ -84,7 +84,7 @@ jobs:
 
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           architecture: ${{ matrix.arch }}
@@ -103,7 +103,7 @@ jobs:
         sdk: [2.12.0-29.10.beta]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           sdk: ${{ matrix.sdk }}
@@ -122,7 +122,7 @@ jobs:
         sdk: [2.19, 3.0, 3.1]
       fail-fast: false
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: ./
         with:
           sdk: ${{ matrix.sdk }}

.github/workflows/publish.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       # Checkout repository
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       # Set up the Dart SDK and provision the OIDC token used for publishing.
       # The `dart` command from this step will be shadowed by the one from the
       # Flutter SDK below.