fix(deps): update all dependencies to v2.1.21

| datasource | package                                                                                           | from   | to     |
| ---------- | ------------------------------------------------------------------------------------------------- | ------ | ------ |
| maven      | org.jetbrains.kotlin.plugin.serialization:org.jetbrains.kotlin.plugin.serialization.gradle.plugin | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.plugin.parcelize:org.jetbrains.kotlin.plugin.parcelize.gradle.plugin         | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.multiplatform:org.jetbrains.kotlin.multiplatform.gradle.plugin               | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.kapt:org.jetbrains.kotlin.kapt.gradle.plugin                                 | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.jvm:org.jetbrains.kotlin.jvm.gradle.plugin                                   | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.plugin.compose:org.jetbrains.kotlin.plugin.compose.gradle.plugin             | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.native.cocoapods:org.jetbrains.kotlin.native.cocoapods.gradle.plugin         | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin.android:org.jetbrains.kotlin.android.gradle.plugin                           | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin:kotlin-gradle-plugin                                                         | 2.1.20 | 2.1.21 |
| maven      | org.jetbrains.kotlin:kotlin-test-junit                                                            | 2.1.20 | 2.1.21 |

Author: renovate[bot]

gradle/libs.versions.toml

@@ -25,7 +25,7 @@ java-toolchain = "21"
 jetbrains-compose = "1.8.0"
 junit = "4.13.2"
 koin = "4.0.4"
-kotlin = "2.1.20"
+kotlin = "2.1.21"
 kotlinx-coroutines = "1.10.2"
 kotlinx-kover = "0.9.1"
 ktlint = "1.0.0"