Bump Shouldly from 4.0.1 to 4.0.3 (#96)

Bumps [Shouldly](https://github.com/shouldly/shouldly) from 4.0.1 to 4.0.3.
- [Release notes](https://github.com/shouldly/shouldly/releases)
- [Changelog](https://github.com/shouldly/shouldly/blob/master/BREAKING%20CHANGES.txt)
- [Commits](shouldly/shouldly@v4.0.1...v4.0.3)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

src/GraphQLParser.ApiTests/GraphQLParser.ApiTests.csproj

@@ -6,7 +6,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
-    <PackageReference Include="Shouldly" Version="4.0.1" />
+    <PackageReference Include="Shouldly" Version="4.0.3" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="PublicApiGenerator" Version="10.2.0" />

src/GraphQLParser.Tests/GraphQLParser.Tests.csproj

@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.8.3" />
-    <PackageReference Include="Shouldly" Version="4.0.1" />
+    <PackageReference Include="Shouldly" Version="4.0.3" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3" />
     <PackageReference Include="NSubstitute" Version="4.2.2" />