Update kotlinserialization to v1.7.3 (#43)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

gradle/libs.versions.toml

@@ -1,6 +1,6 @@
 [versions]
 kotlin = "2.0.20"
-kotlinserialization = "1.7.2"
+kotlinserialization = "1.7.3"
 
 [libraries]
 caffeine = { module = "com.github.ben-manes.caffeine:caffeine", version = "2.9.3" }