Bump ApprovalTests from 5.7.3 to 5.8.0 in /src

Bumps [ApprovalTests](https://github.com/approvals/ApprovalTests.Net) from 5.7.3 to 5.8.0.
- [Release notes](https://github.com/approvals/ApprovalTests.Net/releases)
- [Commits](https://github.com/approvals/ApprovalTests.Net/commits/5.8.0)

---
updated-dependencies:
- dependency-name: ApprovalTests
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

src/NServiceBus.IntegrationTesting.Tests/NServiceBus.IntegrationTesting.Tests.csproj

@@ -13,7 +13,7 @@
  <PrivateAssets>all</PrivateAssets>
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  </PackageReference>
- <PackageReference Include="ApprovalTests" Version="5.7.3" />
+ <PackageReference Include="ApprovalTests" Version="5.8.0" />
  <PackageReference Include="PublicApiGenerator" Version="10.3.0" />
  </ItemGroup>