Update ESLint to 7.19.0

DISABLE_THIRD_PARTY_CHECK=NPM update
R=jacktfranklin@chromium.org

Bug: none
Change-Id: I6bc8fd7e6f416ceae5e849ba3c4061887b940f07
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2692306
Commit-Queue: Tim van der Lippe <tvanderlippe@chromium.org>
Auto-Submit: Tim van der Lippe <tvanderlippe@chromium.org>
Reviewed-by: Jack Franklin <jacktfranklin@chromium.org>
diff --git a/node_modules/astral-regex/index.d.ts b/node_modules/astral-regex/index.d.ts
new file mode 100644
index 0000000..e81ac31
--- /dev/null
+++ b/node_modules/astral-regex/index.d.ts
@@ -0,0 +1,28 @@
+declare namespace astralRegex {
+	interface Options {
+		/**
+		Only match an exact string. Useful with `RegExp#test()` to check if a string is a astral symbol. Default: `false` _(Matches any astral symbols in a string)_
+		*/
+		readonly exact?: boolean;
+	}
+}
+
+/**
+Regular expression for matching [astral symbols](https://everything2.com/title/astral+plane).
+
+@returns A `RegExp` for matching astral symbols.
+
+@example
+```
+import astralRegex = require('astral-regex');
+
+astralRegex({exact: true}).test('🦄');
+//=> true
+
+'foo 🦄 💩 bar'.match(astralRegex());
+//=> ['🦄', '💩']
+```
+*/
+declare function astralRegex(options?: astralRegex.Options): RegExp;
+
+export = astralRegex;