Bump actions/checkout from 2 to 6 (#304)

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/build.yml

@@ -5,7 +5,7 @@ jobs:
     runs-on: windows-2022
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
 
     - name: Add MSBuild to PATH
       uses: microsoft/setup-msbuild@v1.1.3

.github/workflows/release.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: windows-2022
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
 
     - name: Add MSBuild to PATH
       uses: microsoft/setup-msbuild@v1.1.3