Bump actions/setup-dotnet from 1.8.2 to 2

Bumps [actions/setup-dotnet](https://github.com/actions/setup-dotnet) from 1.8.2 to 2.
- [Release notes](https://github.com/actions/setup-dotnet/releases)
- [Commits](actions/setup-dotnet@v1.8.2...v2)

---
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>

Author: dependabot[bot]

.github/workflows/dotnet.yml

@@ -26,7 +26,7 @@ jobs:
       - id: gitversion
         uses: gittools/actions/gitversion/execute@v0.9.10
 
-      - uses: actions/setup-dotnet@v1.8.2
+      - uses: actions/setup-dotnet@v2
         with:
           dotnet-version: 6.0.x
 
@@ -83,7 +83,7 @@ jobs:
           name: nugets
 
       - name: setup dotnet
-        uses: actions/setup-dotnet@v1.8.2
+        uses: actions/setup-dotnet@v2
         with:
           dotnet-version: 6.0.x
           source-url: https://nuget.pkg.github.com/linked-data-dotnet/index.json
@@ -103,7 +103,7 @@ jobs:
         with:
           name: nugets
 
-      - uses: actions/setup-dotnet@v1.8.2
+      - uses: actions/setup-dotnet@v2
         with:
           dotnet-version: 6.0.x
           source-url: https://api.nuget.org/v3/index.json