Bump io.opentelemetry.instrumentation:opentelemetry-ktor-3.0

Bumps [io.opentelemetry.instrumentation:opentelemetry-ktor-3.0](https://github.com/open-telemetry/opentelemetry-java-instrumentation) from 2.13.1-alpha to 2.21.0-alpha.
- [Release notes](https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/main/CHANGELOG.md)
- [Commits](https://github.com/open-telemetry/opentelemetry-java-instrumentation/commits)

---
updated-dependencies:
- dependency-name: io.opentelemetry.instrumentation:opentelemetry-ktor-3.0
  dependency-version: 2.21.0-alpha
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

kotlin-wot-binding-http/build.gradle.kts

@@ -14,7 +14,7 @@ dependencies {
     implementation("io.ktor:ktor-server-metrics-micrometer")
     implementation("io.ktor:ktor-server-auto-head-response")
 
-    implementation("io.opentelemetry.instrumentation:opentelemetry-ktor-3.0:2.13.1-alpha")
+    implementation("io.opentelemetry.instrumentation:opentelemetry-ktor-3.0:2.21.0-alpha")
 
     testImplementation("io.ktor:ktor-server-test-host")
     testImplementation("ch.qos.logback:logback-classic:1.5.12")

kotlin-wot-binding-websocket/build.gradle.kts

@@ -9,7 +9,7 @@ dependencies {
     implementation("io.ktor:ktor-server-content-negotiation")
 
     // Tracing
-    implementation("io.opentelemetry.instrumentation:opentelemetry-ktor-3.0:2.13.1-alpha")
+    implementation("io.opentelemetry.instrumentation:opentelemetry-ktor-3.0:2.21.0-alpha")
 
     implementation("io.ktor:ktor-client-cio")
     implementation("io.ktor:ktor-client-auth")