add compiler problem matcher

[Trass3r]

I'm puzzled this doesn't set up problem matchers for compiler messages like

/home/runner/work/user/repo/src/[...].java:203: warning: [dep-ann] deprecated item is not annotated with @Deprecated
    protected String getResource() {
/home/runner/work/user/repo/src/[...].java:563: error: cannot find symbol

Something like

		{
			"owner": "java",
			"pattern": [
				{
					"regexp": "^([^:]+):(\\d+): (warning|error): (.+?)$",
					"file": 1,
					"line": 2,
					"severity": 3,
					"message": 4
				}
			]
		}

[dmitry-shibanov]

Hello @Trass3r. Thank you for your report. We'll investigate the feature request. Could you please provide a public repository for testing ?

[Trass3r]

Seen at https://github.com/tonihele/OpenKeeper/runs/4941368760.

[Trass3r]

See https://github.com/Trass3r/setup-cpp/blob/master/main.js for reference.