chore(deps): update actions/checkout action to v6 (#24)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/mega-linter.yaml

@@ -40,7 +40,7 @@ jobs:
           app-id: ${{ vars.APP_ID }}
           private-key: ${{ secrets.PRIVATE_KEY }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - id: lint
         name: MegaLinter
         uses: liblaf/actions/mega-linter@v1

.github/workflows/release-please.yaml

@@ -37,7 +37,7 @@ jobs:
           app-id: ${{ vars.APP_ID }}
           private-key: ${{ secrets.PRIVATE_KEY }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           token: ${{ steps.auth.outputs.token }}
       - id: release-please
@@ -67,7 +67,7 @@ jobs:
           app-id: ${{ vars.APP_ID }}
           private-key: ${{ secrets.PRIVATE_KEY }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ fromJson(needs.release-please.outputs.pr).headBranchName }}
           token: ${{ steps.auth.outputs.token }}
@@ -123,7 +123,7 @@ jobs:
           app-id: ${{ vars.APP_ID }}
           private-key: ${{ secrets.PRIVATE_KEY }}
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ needs.release-please.outputs.tag }}
           token: ${{ steps.auth.outputs.token }}

template/.github/workflows/bench.yaml

@@ -29,7 +29,7 @@ jobs:
       python-versions: ${{ steps.inspect.outputs.supported_python_classifiers_json_array }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - id: inspect
         name: Build and Inspect a Python Package
         uses: hynek/build-and-inspect-python-package@v2
@@ -53,7 +53,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - name: Setup Python
         uses: liblaf/actions/setup-python@v1
       - name: Install Mise

template/.github/workflows/docs.yaml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - id: config

template/.github/workflows/release.yaml

@@ -22,7 +22,7 @@ jobs:
       package-version: ${{ steps.build.outputs.package_version }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - id: build
         name: Build and Inspect a Python Package
         uses: hynek/build-and-inspect-python-package@v2

template/.github/workflows/test.yaml

@@ -31,7 +31,7 @@ jobs:
       python-versions: ${{ steps.inspect.outputs.supported_python_classifiers_json_array }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
       - id: inspect
         name: Build and Inspect a Python Package
         uses: hynek/build-and-inspect-python-package@v2
@@ -56,7 +56,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0 # I don't know why, but it is present in the official example
       - name: Setup Python