installed LiquidTestReports.Markdown to test project, removed install from pipeline

Author: Petr Sramek

.github/workflows/dotnet.yml

@@ -83,7 +83,6 @@ jobs:
       uses: actions/setup-dotnet@v4
       with:
         dotnet-version: ${{ vars.DOTNET_SDK_VERSION }}
-    - run: dotnet add package LiquidTestReports.Markdown
     - name: Test with .NET ${{ vars.DOTNET_SDK_VERSION }}
       run: dotnet test ${{ vars.TEST_SEARCH_PATTERN }} --logger "liquid.md" --configuration ${{ vars.BUILD_CONFIGURATION }} --verbosity normal --settings unit-test.runsettings -- --coverage --coverage-output-format cobertura --report-trx --results-directory ${{ runner.temp }}/test-results/
     - name: Upload Test Results

tests/PolylineAlgorithm.Tests/PolylineAlgorithm.Tests.csproj

@@ -25,6 +25,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
+		<PackageReference Include="LiquidTestReports.Markdown" Version="1.*" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.*" />
 		<PackageReference Include="Microsoft.Testing.Extensions.CodeCoverage" Version="17.*" />
 		<PackageReference Include="Microsoft.Testing.Extensions.TrxReport" Version="1.*" />