Merge pull request #3913 from netology-code/dependabot/gradle/08_material/org.jetbrains.kotlin.android-2.1.21

Author: dependabot[bot]

08_material/gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 agp = "8.10.0"
-kotlin = "2.1.20"
+kotlin = "2.1.21"
 coreKtx = "1.16.0"
 junit = "4.13.2"
 junitVersion = "1.2.1"