updated build workflows to .Net 6 #23

Author: irongut

.github/workflows/ci-build.yml

@@ -26,4 +26,4 @@ jobs:
       run: dotnet build src/CodeCoverageSummary.sln --configuration Release --no-restore
 
     - name: Test with sample file
-      run: dotnet src/CodeCoverageSummary/bin/Release/net5.0/CodeCoverageSummary.dll --files src/coverage.cobertura.xml --badge true
+      run: dotnet src/CodeCoverageSummary/bin/Release/net6.0/CodeCoverageSummary.dll --files src/coverage.cobertura.xml --badge true

.github/workflows/release-build.yml

@@ -30,7 +30,7 @@ jobs:
       run: dotnet build src/CodeCoverageSummary.sln --configuration Release --no-restore
 
     - name: Test with sample file
-      run: dotnet src/CodeCoverageSummary/bin/Release/net5.0/CodeCoverageSummary.dll src/coverage.cobertura.xml --badge true
+      run: dotnet src/CodeCoverageSummary/bin/Release/net6.0/CodeCoverageSummary.dll src/coverage.cobertura.xml --badge true
 
     - name: Get Previous Tag
       id: get_previous_tag