Bump coverlet.collector from 1.3.0 to 3.0.3

Bumps [coverlet.collector](https://github.com/coverlet-coverage/coverlet) from 1.3.0 to 3.0.3.
- [Release notes](https://github.com/coverlet-coverage/coverlet/releases)
- [Commits](https://github.com/coverlet-coverage/coverlet/commits)

Signed-off-by: dependabot[bot] <support@github.com>

BackendTests/BackendTests.csproj

@@ -13,7 +13,7 @@
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>
-        <PackageReference Include="coverlet.collector" Version="1.3.0">
+        <PackageReference Include="coverlet.collector" Version="3.0.3">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
         </PackageReference>