Run UI tests on push to release branch (#2880)

Task/Issue URL: https://app.asana.com/0/1203301625297703/1207610721118526/f

Description:
This change causes UI tests workflow to be run on every push to release and hotfix branches.
It also adds mechanism of cancelling previous unfinished workflows in case a new push event is triggered.

.github/workflows/ui_tests.yml

@@ -4,6 +4,10 @@ on:
   workflow_dispatch:
   schedule:
      - cron: '0 3 * * 1-5' # 3AM UTC offsetted to legacy to avoid action-junit-report@v4 bug
+  pull_request:
+    branches:
+      - hotfix/*
+      - release/*
 
 jobs:
   ui-tests:
@@ -14,6 +18,10 @@ jobs:
       matrix:
         runner: [macos-13-xlarge, macos-14-xlarge]
 
+    concurrency:
+      group: ${{ github.workflow }}-${{ github.ref }}-${{ matrix.runner }}
+      cancel-in-progress: true
+
     timeout-minutes: 120
 
     steps: