Update Broken link in ThirdPartyNotices.txt

[deontic]

server responds with a 404 for http://www.unicode.org/cldr/data/
the link is located in ThirdPartyNotices.txt

[sbatten]

@mjbvz generated from

vscode/extensions/typescript-language-features/cgmanifest.json

Lines 27 to 40 in e8760a5

	"component": {
	"type": "other",
	"other": {
	"name": "Unicode",
	"downloadUrl": "https://home.unicode.org/",
	"version": "12.0.0"
	}
	},
	"licenseDetail": [
	"Unicode Data Files include all data files under the directories",
	"http://www.unicode.org/Public/, http://www.unicode.org/reports/,",
	"http://www.unicode.org/cldr/data/, http://source.icu-project.org/repos/icu/, and",
	"http://www.unicode.org/utility/trac/browser/.",
	"",

I believe