Do some CI chore

- rename JRuby CI workflow to tests
- add dependabot config
- simplify copyright in license file

.github/dependabot.yml

@@ -0,0 +1,16 @@
+# Please see the documentation for all configuration options:
+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+
+version: 2
+updates:
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+
+  # Maintain dependencies for Rubygems
+  - package-ecosystem: "bundler"
+    directory: "/"
+    schedule:
+      interval: "weekly"

.github/workflows/jruby.yml → .github/workflows/tests.yml

@@ -1,10 +1,15 @@
-name: JRuby CI
+---
+name: Tests
 
 on:
   push:
-    branches: [ main, develop ]
+    branches:
+      - main
+      - develop
   pull_request:
-    branches: [ main, develop ]
+    branches:
+      - main
+      - develop
 
 jobs:
   test:

MIT-LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright (c) 2015-2022 Paul Götze
+Copyright (c) 2015 Paul Götze
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,7 +1,7 @@
 # Weka
 
-[![Build Status](https://github.com/paulgoetze/weka-jruby/workflows/JRuby%20CI/badge.svg)](https://github.com/paulgoetze/weka-jruby/workflows/JRuby%20CI/badge.svg)
 [![Gem Version](https://badge.fury.io/rb/weka.svg)](http://badge.fury.io/rb/weka)
+[![Build Status](https://github.com/paulgoetze/weka-jruby/workflows/Tests/badge.svg)](https://github.com/paulgoetze/weka-jruby/workflows/Tests/badge.svg)
 
 Machine Learning & Data Mining with JRuby based on the
 [Weka](http://www.cs.waikato.ac.nz/~ml/weka/index.html) Java library.