Test latest versions and run tests once a month

.github/workflows/build.yaml

@@ -1,6 +1,9 @@
 name: build
 
-on: push
+on:
+  push:
+  schedule:
+    - cron: 0 12 1 * *
 
 jobs:
   build:
@@ -34,7 +37,7 @@ jobs:
     needs: test-latest
     strategy:
       matrix:
-        just-version: [0.5.11, 0.6.1, 0.7.3, 0.8.7, 0.9.9, 0.10.0]
+        just-version: [0.5.11, 0.6.1, 0.7.3, 0.8.7, 0.9.9, 0.10.7, 0.11.2, 1.5.0]
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v2

README.md

@@ -21,7 +21,7 @@ If you want a specific version of `just` you can specify this by passing the
 ```yaml
 - uses: extractions/setup-just@v1
   with:
-    just-version: '0.10'
+    just-version: '1.4.0'
 ```
 
 In rare circumstances you might get rate limiting errors, this is because this