Add build step to CI workflow (#100)

* Initial plan

* Add build step to ci.yml to ensure the entire solution builds successfully

Agent-Logs-Url: https://github.com/dex3r/EasySourceGenerators/sessions/1f59a137-8797-47f2-a6a3-b8297d162636

Co-authored-by: dex3r <[email protected]>

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: dex3r <[email protected]>

Author: Copilot

.github/workflows/ci.yml

@@ -23,8 +23,11 @@ jobs:
       - name: Restore dependencies
         run: dotnet restore EasySourceGenerators.sln
 
+      - name: Build
+        run: dotnet build EasySourceGenerators.sln --no-restore
+
       - name: Test
-        run: dotnet test EasySourceGenerators.sln --no-restore --verbosity normal --collect:"XPlat Code Coverage" --logger "trx;LogFilePrefix=test-results" --results-directory ./coverage
+        run: dotnet test EasySourceGenerators.sln --no-build --verbosity normal --collect:"XPlat Code Coverage" --logger "trx;LogFilePrefix=test-results" --results-directory ./coverage
 
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v5