Weekly Cronjob fetching artifacts and generating polkadot.rs file. (#1352)

* github CI action cronjob

* add commit message

* fix the CI yml files

* binary crate for CI script with substrate-runner

* update the CI script

* correct the artifacts script

* remove bash script

.editorconfig

@@ -11,3 +11,6 @@ trim_trailing_whitespace = true
 insert_final_newline = true
 indent_style = space
 indent_size = 4
+
+[*.yml]
+indent_size = 2