JCefSampleApp for 141.0.10

Update JCEF to 2caef5a

Build: GitHub Actions #57
JCEF maven version: 141.0.10

Test the resulting build on your platform:

java -jar jcefsampleapp-141.0.10-jar-with-dependencies.jar

Make sure to include the required module opens when running on JDK 16 or later. You can find them here.

Warning: This will destroy any directory called jcef-bundle in your current work dir!