Bump logback-classic from 1.2.11 to 1.4.0 (#1481)

Bumps [logback-classic](https://github.com/qos-ch/logback) from 1.2.11 to 1.4.0.
- [Release notes](https://github.com/qos-ch/logback/releases)
- [Commits](https://github.com/qos-ch/logback/compare/v_1.2.11...v_1.4.0)

---
updated-dependencies:
- dependency-name: ch.qos.logback:logback-classic
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

uhabits-server/build.gradle.kts

@@ -35,7 +35,7 @@ application {
 dependencies {
     val ktorVersion = "1.6.8"
     val kotlinVersion = "1.7.10"
-    val logbackVersion = "1.2.11"
+    val logbackVersion = "1.4.0"
     implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion")
     implementation("io.ktor:ktor-server-netty:$ktorVersion")
     implementation("ch.qos.logback:logback-classic:$logbackVersion")