chore: multi dotnet versions (#4)

### 🗒️ Description

multiple dotnet versions

### ✅ Checklist

<!--- Please include the following in your Pull Request when applicable
-->

- [ ] Linked to any related issues in the PR description
- [ ] Added or updated documentation
- [ ] Tests for new functionality and regression tests for bug fixes
- [ ] Breaking changes were made

.github/workflows/build-and-test.yml

@@ -59,5 +59,5 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
           directory: ./reports/coverage/
           fail_ci_if_error: false
-          flags: unittests
+          flags: unittests, ${{ matrix.dotnet-version }}
           slug: saan800/saansoft-correlationId

src/SaanSoft.CorrelationId/SimpleCorrelationIdProvider.cs

@@ -1,7 +1,7 @@
 namespace SaanSoft.CorrelationId;
 
 /// <summary>
-/// If no correlationId is set, it will default to `Guid.NewGuid().ToString()` to ensure a value is always provided.
+/// If no correlationId is set, it will default to `Guid.NewGuid().ToString()` to ensure a value is always provided
 /// </summary>
 public class SimpleCorrelationIdProvider : ICorrelationIdProvider
 {

test/SaanSoft.Tests.CorrelationId.Common/GlobalUsings.cs

@@ -1 +1,2 @@
+global using System;
 global using FakeItEasy;