fix: workflow

Author: ldez

.github/workflows/main.yml

@@ -11,9 +11,7 @@ jobs:
     name: Tests
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v2
-        with:
-          node-version: 12
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
       - run: npm install
       - run: npm run test

.gitignore

@@ -8,6 +8,7 @@ lib-cov
 *.out
 *.pid
 *.gz
+.idea/
 
 pids
 logs

karma.conf.coffee

@@ -49,7 +49,7 @@ module.exports = (config) ->
 
     # start these browsers
     # available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['PhantomJS']
+    browsers: ['FirefoxHeadless']
 
     # Continuous Integration mode
     # if true, Karma captures browsers, runs the tests and exits