build(deps): bump Shouldly from 4.0.0-beta0002 to 4.0.0-beta0003 (#603)

Bumps [Shouldly](https://github.com/shouldly/shouldly) from 4.0.0-beta0002 to 4.0.0-beta0003.
- [Release notes](https://github.com/shouldly/shouldly/releases)
- [Changelog](https://github.com/shouldly/shouldly/blob/master/BREAKING%20CHANGES.txt)
- [Commits](shouldly/shouldly@4.0.0-beta0002...v.4.0.0-beta0003)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

src/Akavache.Tests/Akavache.Tests.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="Splat.Drawing" Version="9.*" />
     <PackageReference Include="System.Net.Http" Version="4.3.4" />
     <PackageReference Include="SQLitePCLRaw.bundle_e_sqlite3" Version="2.0.4" />
-    <PackageReference Include="Shouldly" Version="4.0.0-beta0002" />
+    <PackageReference Include="Shouldly" Version="4.0.0-beta0003" />
   </ItemGroup>
 
   <ItemGroup>