fix(dev-docs): known bugs link in CONTRIBUTING.md (#3161)

Author: lordivash

dev-docs/CONTRIBUTING.md

@@ -18,7 +18,7 @@ The summaries include information like
 
 Currently, Tact does not have a (formal) language specification, so one needs to consult the [Tact docs](https://docs.tact-lang.org) and the tests in this repository.
 
-The list of known bugs can be obtained using the following GitHub request: <https://github.com/tact-lang/tact/issues?q=is%3Aopen+is%3Aissue+label%3Abug>.
+The list of known bugs can be obtained using the following GitHub request: <https://github.com/tact-lang/tact/issues?q=is%3Aopen%20is%3Aissue%20label%3A%22kind%3A%20bug%22>.
 
 The document outlines how you can contribute and provides information about different components of the compiler, including their entry points.