[CI] Make scheduled job runs 4 times a day (#160)

Author: aobolensk

Diff for: .github/workflows/main.yml

@@ -4,7 +4,7 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '0 12 * * *'
+    - cron: '0 0,6,12,18 * * *'
   workflow_dispatch:
 
 concurrency:

Diff for: .github/workflows/perf-statistic.yml

@@ -4,7 +4,7 @@ on:
   push:
   pull_request:
   schedule:
-    - cron: '0 12 * * *'
+    - cron: '0 0,6,12,18 * * *'
   workflow_dispatch:
 
 jobs: