chore(deps): update kotlin.plugin to v2.3.20

Author: renovate[bot]

gradle/libs.versions.toml

@@ -1,5 +1,5 @@
 [versions]
-kotlin-plugin = "2.2.21"
+kotlin-plugin = "2.3.20"
 android-plugin = "8.12.3"
 apollo = "4.4.2"
 okio = "3.9.0"