Bump the tests group across 1 directory with 3 updates

Bumps the tests group with 3 updates in the / directory: [MSTest.TestAdapter](https://github.com/microsoft/testfx), [MSTest.TestFramework](https://github.com/microsoft/testfx) and [OxyPlot.Core](https://github.com/oxyplot/oxyplot).


Updates `MSTest.TestAdapter` from 3.6.4 to 3.7.0
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.6.4...v3.7.0)

Updates `MSTest.TestFramework` from 3.6.4 to 3.7.0
- [Release notes](https://github.com/microsoft/testfx/releases)
- [Changelog](https://github.com/microsoft/testfx/blob/main/docs/Changelog.md)
- [Commits](microsoft/testfx@v3.6.4...v3.7.0)

Updates `OxyPlot.Core` from 2.0.0 to 2.2.0
- [Release notes](https://github.com/oxyplot/oxyplot/releases)
- [Changelog](https://github.com/oxyplot/oxyplot/blob/develop/CHANGELOG.md)
- [Commits](oxyplot/oxyplot@v2.0.0...v2.2.0)

---
updated-dependencies:
- dependency-name: MSTest.TestAdapter
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: tests
- dependency-name: MSTest.TestFramework
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: tests
- dependency-name: OxyPlot.Core
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: tests
...

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

src/PdfRpt.Core.FunctionalTests/PdfRpt.Core.FunctionalTests.csproj

@@ -13,10 +13,10 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.6.4" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.6.4" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.7.0" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.7.0" />
     <PackageReference Include="Microsoft.Data.Sqlite" Version="9.0.0" />
-    <PackageReference Include="OxyPlot.Core" Version="2.0.0" />
+    <PackageReference Include="OxyPlot.Core" Version="2.2.0" />
     <PackageReference Include="EPPlus" Version="[4.5.3.3, 5)" />
     <PackageReference Include="System.Drawing.Common" Version="9.0.0" />
   </ItemGroup>