Bump core-js from 3.20.2 to 3.20.3

Bumps [core-js](https://github.com/zloirock/core-js) from 3.20.2 to 3.20.3.
- [Release notes](https://github.com/zloirock/core-js/releases)
- [Changelog](https://github.com/zloirock/core-js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zloirock/core-js/compare/v3.20.2...v3.20.3)

---
updated-dependencies:
- dependency-name: core-js
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -16,7 +16,7 @@
     "braces": "^3.0.2",
     "browser-sync": "^2.27.7",
     "child_process": "^1.0.2",
-    "core-js": "^3.20.2",
+    "core-js": "^3.20.3",
     "del": "^6.0.0",
     "fancy-log": "^2.0.0",
     "fstream": "^1.0.12",

yarn.lock

@@ -2243,10 +2243,10 @@ core-js-compat@^3.20.0, core-js-compat@^3.20.2:
     browserslist "^4.19.1"
     semver "7.0.0"
 
-core-js@^3.20.2:
-  version "3.20.2"
-  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.20.2.tgz#46468d8601eafc8b266bd2dd6bf9dee622779581"
-  integrity sha512-nuqhq11DcOAbFBV4zCbKeGbKQsUDRqTX0oqx7AttUBuqe3h20ixsE039QHelbL6P4h+9kytVqyEtyZ6gsiwEYw==
+core-js@^3.20.3:
+  version "3.20.3"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.20.3.tgz#c710d0a676e684522f3db4ee84e5e18a9d11d69a"
+  integrity sha512-vVl8j8ph6tRS3B8qir40H7yw7voy17xL0piAjlbBUsH7WIfzoedL/ZOr1OV9FyZQLWXsayOJyV4tnRyXR85/ag==
 
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"