Enable manual run of the build workflow

Author: vitcpp

.github/workflows/build-and-check.yml

@@ -3,6 +3,9 @@ name: Build and Check
 on:
   push:
   pull_request:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * 5'
 
 jobs:
   build_and_test: