bump version to 13 (#44)

Author: Tsyklop

gradle.properties

@@ -1,7 +1,7 @@
 # supported values: 252, 253, 261
 environmentName=261
 
-pluginVersion=2026.12
+pluginVersion=2026.13
 
 # type of IDE (IDEA, CLion, etc.) used to build/test running
 # for more details see `Different IDEs` section in `PlatformVersions.md`