Bump turbine from 0.7.0 to 0.8.0

Bumps [turbine](https://github.com/cashapp/turbine) from 0.7.0 to 0.8.0.
- [Release notes](https://github.com/cashapp/turbine/releases)
- [Changelog](https://github.com/cashapp/turbine/blob/trunk/CHANGELOG.md)
- [Commits](https://github.com/cashapp/turbine/compare/0.7.0...0.8.0)

---
updated-dependencies:
- dependency-name: app.cash.turbine:turbine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

test-harness/build.gradle

@@ -9,7 +9,7 @@ test {
 
 dependencies {
     kotlinTest(it)
-    testImplementation 'app.cash.turbine:turbine:0.7.0'
+    testImplementation 'app.cash.turbine:turbine:0.8.0'
 
     testImplementation Dependencies.mavenCentral.kotlinSerializationJson