Bump actions/setup-dotnet from 3 to 4

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 3 to 4.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](https://github.com/actions/setup-dotnet/compare/v3...v4)

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

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

.github/workflows/cd.yaml

@@ -28,7 +28,7 @@ jobs:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '8.0.x'
 

.github/workflows/ci.yaml

@@ -27,7 +27,7 @@ jobs:
         fetch-depth: 0
 
     - name: Install .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
         dotnet-version: '8.0.x'