build(deps): bump Exceptionless from 5.0.0 to 6.0.2 in /src (#1013)

Bumps [Exceptionless](https://github.com/exceptionless/Exceptionless.Net) from 5.0.0 to 6.0.2.
- [Release notes](https://github.com/exceptionless/Exceptionless.Net/releases)
- [Commits](exceptionless/Exceptionless.Net@v5.0.0...v6.0.2)

---
updated-dependencies:
- dependency-name: Exceptionless
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

src/Splat.Exceptionless/Splat.Exceptionless.csproj

@@ -11,7 +11,7 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Exceptionless" Version="5.0.0" />
+    <PackageReference Include="Exceptionless" Version="6.0.2" />
     <PackageReference Include="System.Collections.Immutable" Version="7.0.0" />
   </ItemGroup>