Bump ktorVersion from 1.5.2 to 1.5.3

Bumps `ktorVersion` from 1.5.2 to 1.5.3.

Updates `ktor-server-netty` from 1.5.2 to 1.5.3
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ktorio/ktor/compare/1.5.2...1.5.3)

Updates `ktor-server-core` from 1.5.2 to 1.5.3
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ktorio/ktor/compare/1.5.2...1.5.3)

Updates `ktor-html-builder` from 1.5.2 to 1.5.3
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ktorio/ktor/compare/1.5.2...1.5.3)

Updates `ktor-server-tests` from 1.5.2 to 1.5.3
- [Release notes](https://github.com/ktorio/ktor/releases)
- [Changelog](https://github.com/ktorio/ktor/blob/main/CHANGELOG.md)
- [Commits](https://github.com/ktorio/ktor/compare/1.5.2...1.5.3)

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

uhabits-server/build.gradle.kts

@@ -33,7 +33,7 @@ application {
 }
 
 dependencies {
-    val ktorVersion = "1.5.2"
+    val ktorVersion = "1.5.3"
     val kotlinVersion = "1.4.32"
     val logbackVersion = "1.2.3"
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion")