Update Kover to 0.4.2 (#1772)

diff --git a/gradle.properties b/gradle.properties
index 4335988..cabfd0b 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -18,7 +18,7 @@
 validator_version=0.7.1
 knit_version=0.2.2
 coroutines_version=1.3.9
-kover_version=0.3.0
+kover_version=0.4.2
 
 kover.enabled=true