Bump kotlin from 2.0.21 to 2.1.0 (#190)

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ crowdin = "1.19.5"
 exposed = "0.56.0"
 firebase-admin = "9.4.1"
 imageio-webp = "0.1.6"
-kotlin = "2.0.21"
+kotlin = "2.1.0"
 kotlinx-kover = "0.8.3"
 kotlin-serialization = "1.7.3"
 ktor = "3.0.1"