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] <support@github.com>

Author: dependabot[bot]

.github/workflows/release.yaml

@@ -1,4 +1,4 @@
-name: Package Release to GitHub and Nuget
+name: Package Release to GitHub and Nuget
 
 on:
   workflow_dispatch:
@@ -19,7 +19,7 @@ jobs:
       version: ${{ steps.version.outputs.semver }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 
@@ -105,7 +105,7 @@ jobs:
       - package-build
       - release-github
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/test-strict.yaml

@@ -1,4 +1,4 @@
-name: .NET Build and Test (More Platforms)
+name: .NET Build and Test (More Platforms)
 
 on:
   workflow_dispatch:
@@ -23,7 +23,7 @@ jobs:
         if: matrix.os == 'windows-latest'
 
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0
 

.github/workflows/test.yaml

@@ -1,4 +1,4 @@
-name: .NET Build and Test
+name: .NET Build and Test
 
 on:
   workflow_dispatch:
@@ -20,7 +20,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           fetch-depth: 0