Bump actions/setup-dotnet from 3 to 4 (#320)

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 3 to 4.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/build.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Setup .NET Core
-      uses: actions/setup-dotnet@v3
+      uses: actions/setup-dotnet@v4
       with:
           dotnet-version: '8.x'
     - name: Install dependencies

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
       # Required for a specific dotnet version that doesn't come with ubuntu-latest / windows-latest
       # Visit bit.ly/2synnZl to see the list of SDKs that are pre-installed with ubuntu-latest / windows-latest
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v3
+        uses: actions/setup-dotnet@v4
         with:
           dotnet-version: 6.0.x