tests with schedule, codecov settings

.github/workflows/tests.yml

@@ -8,6 +8,8 @@ on:
     branches: [ main ]
   pull_request:
     branches: [ main ]
+  schedule:
+    - cron: '0 9 * * MON,WED,FRI'
 
 jobs:
   build:

codecov.yml

@@ -0,0 +1,20 @@
+codecov:
+  require_ci_to_pass: yes
+
+coverage:
+  precision: 2
+  round: down
+  range: "80...100"
+
+parsers:
+  gcov:
+    branch_detection:
+      conditional: yes
+      loop: yes
+      method: no
+      macro: no
+
+comment:
+  layout: "reach,diff,flags,files,footer"
+  behavior: default
+  require_changes: no