Add weekly scheduled workflow tasks

.github/workflows/linux.yml

@@ -1,5 +1,9 @@
 name: 🐧 Linux
-on: [ push, pull_request ]
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 2'
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/mac.yml

@@ -1,5 +1,9 @@
 name: 🍎 MacOS
-on: [ push, pull_request ]
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 2'
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/quality.yml

@@ -1,5 +1,9 @@
 name: Quality
-on: [ push, pull_request ]
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 2'
 
 env:
   CARGO_TERM_COLOR: always

.github/workflows/windows.yml

@@ -1,5 +1,9 @@
 name: 🏁 Windows
-on: [ push, pull_request ]
+on:
+  push:
+  pull_request:
+  schedule:
+    - cron: '0 0 * * 2'
 
 env:
   CARGO_TERM_COLOR: always