samples: update mcp-kotlin to 0.10.0 across sample projects (#645)

## Update mcp-kotlin to 0.10.0 across sample projects

## How Has This Been Tested?
Locally, added ServerIntegrationTest to simple-streamable-server

## Breaking Changes
No

## Types of changes
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update
- [x] Test update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [x] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [x] My code follows the repository's style guidelines
- [x] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

samples/simple-streamable-server/build.gradle.kts

@@ -22,6 +22,15 @@ dependencies {
     implementation(libs.ktor.server.sse)
     implementation(libs.ktor.serialization.kotlinx.json)
     implementation(libs.slf4j.simple)
+
+    testImplementation(libs.mcp.kotlin.client)
+    testImplementation(libs.ktor.client.cio)
+    testImplementation(libs.junit.jupiter)
+    testImplementation(kotlin("test"))
+}
+
+tasks.test {
+    useJUnitPlatform()
 }
 
 kotlin {