Fix visual tests failures due to build timeout (#2801)

* Increase visual tests build timeout

* Stop using depcreated set-output Github actions API

Author: timbset

.github/workflows/visual_tests.yml

@@ -17,7 +17,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     name: Build DevExtreme
-    timeout-minutes: 15
+    timeout-minutes: 30
 
     steps:
 

.github/workflows/visual_tests_frameworks.yml

@@ -589,7 +589,7 @@ jobs:
     - name: Get screenshots artifacts name
       if: ${{ failure() }}
       id: screenshotname
-      run: echo ::set-output name=value::$(echo "${{ matrix.CONSTEL }}" | grep -oP "^\w+")
+      run: echo "value=$(echo "${{ matrix.CONSTEL }}" | grep -oP "^\w+")" >> $GITHUB_OUTPUT
 
     - name: Copy screenshots artifacts
       if: ${{ failure() }}