Docker support

[adrian-kong]

Running in docker gives

      "mainEventFilePathname" : "/__w/starling-core/starling-core/public_types/src/external_functions.cc",

[adrian-kong]

This is due to:

coverity-report-output-v7-json/src/github/github-context.ts

Lines 34 to 41 in 149d0dd

	export function relativizePath(path: string): string {
	let length = process.env.GITHUB_WORKSPACE?.length
	if (!length) {
	length = 'undefined'.length
	}
	return path.substring(length + 1)
	}

which matches based on GITHUB_WORKSPACE which is /home/runner/work/starling-core/starling-core

Creates additional issues for

• creating issues instead of reviews since file can never be matched.
• linking issues URL is incorrect.