Add soltysh to kep-tools-approvers

Signed-off-by: Maciej Szulik <soltysh@gmail.com>

Author: soltysh

OWNERS_ALIASES

@@ -193,11 +193,13 @@ aliases:
     - johnbelamaric
     - justaugustus
     - palnabarun
+    - soltysh
   kep-tools-reviewers:
     - jeremyrickard
     - johnbelamaric
     - justaugustus
     - palnabarun
+    - soltysh
   prod-readiness-approvers:
     - deads2k
     - johnbelamaric