WIP: rm before merge

Author: Anton-Latukha

.github/workflows/caching.yml

@@ -30,6 +30,9 @@ on:
   push:
     branches:
       - master
+  pull_request:
+    branches:
+      - '**'
   schedule:
     # Refresh snapshot every (02+8*x):25 UTC
     # When cache is present it is a light check workflow with early temination.