Moved setup-dotnet to after linting step

dotnet-format started failing after bumping setup-dotnet to v3
it looks like the cause of the failure is:
dotnet/format#1560
this was probably succeeding previously because it was using the version
preinstalled on the runner until the breaking change introduced with
[email protected] which caused the preinstalled version to be
overwritten:
https://github.com/actions/setup-dotnet/releases/tag/v3.0.0

.github/workflows/build.yml

@@ -87,17 +87,18 @@ jobs:
       with:
         creds: ${{ secrets.AZURE_CREDENTIALS }}
 
-    - uses: actions/setup-dotnet@v3
-      with:
-        dotnet-version: '6.0.x'
-
     - name: Lint
       run: |
         #https://github.com/dotnet/format/issues/1433
         dotnet tool install -g dotnet-format --version "6.*" --add-source https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json
+        #run setup-dotnet after this step due to https://github.com/dotnet/format/issues/1560
         dotnet-format --verify-no-changes
       working-directory: DqtApi
 
+    - uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: '6.0.x'
+
     - name: Build
       run: dotnet build --configuration Release
       working-directory: DqtApi