build(deps): bump io.ktor:ktor-server-core from 2.3.7 to 2.3.8

Bumps [io.ktor:ktor-server-core](https://github.com/ktorio/ktor) from 2.3.7 to 2.3.8.
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/2.3.8/CHANGELOG.md)
- [Commits](ktorio/ktor@2.3.7...2.3.8)

---
updated-dependencies:
- dependency-name: io.ktor:ktor-server-core
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

app/build.gradle.kts

@@ -31,7 +31,7 @@ dependencies {
     // Use the Kotlin JDK 8 standard library.
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
 
-    implementation("io.ktor:ktor-server-core:2.3.7")
+    implementation("io.ktor:ktor-server-core:2.3.8")
     implementation("io.ktor:ktor-server-netty:2.3.8")
     implementation("io.ktor:ktor-server-content-negotiation:2.3.8")
     implementation("io.ktor:ktor-client-content-negotiation:2.3.8")