chore(deps): bump io.ktor:ktor-server-default-headers in /appengine/ktor

Bumps [io.ktor:ktor-server-default-headers](https://github.com/ktorio/ktor) from 2.3.5 to 2.3.6.
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/2.3.6/CHANGELOG.md)
- [Commits](ktorio/ktor@2.3.5...2.3.6)

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

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

appengine/ktor/build.gradle.kts

@@ -17,7 +17,7 @@ dependencies {
     implementation("io.ktor:ktor-server-servlet")
     implementation("io.ktor:ktor-server-html-builder")
     implementation("io.ktor:ktor-server-call-logging:2.3.6")
-    implementation("io.ktor:ktor-server-default-headers:2.3.5")
+    implementation("io.ktor:ktor-server-default-headers:2.3.6")
     implementation("com.google.cloud:google-cloud-logging-logback:0.130.27-alpha")
 
     runtimeOnly("com.google.appengine:appengine:1.9.98")