build(deps): bump actions/setup-dotnet from 4 to 5

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 4 to 5.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@v4...v5)

---
updated-dependencies:
- dependency-name: actions/setup-dotnet
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/nightly.yml

@@ -1,4 +1,4 @@
-name: Nightly
+name: Nightly
 on:
   push:
     branches:
@@ -26,7 +26,7 @@ jobs:
           show-progress: true
 
       - name: Setup .NET SDK
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@v5
         with:
           dotnet-version: 8.0.x