build: return to 0.13.0-SNAPSHOT development

Signed-off-by: Art Shendrik <artyom.shendrik@gmail.com>

Author: amal

gradle/libs.versions.toml

@@ -10,7 +10,7 @@
 [versions]
 
 # WARNING: Remember to update the version in `README.md` examples!
-version = "0.12.1"
+version = "0.13.0-SNAPSHOT"
 
 # Java/Kotlin compatibility
 # WARNING: kotlinApiVersion can't be greater than kotlinLangVersion!