package.json: Update core-js-compat package dependency
package.json: Update core-js-compat package dependency

Closes #861

jkozol/welder-web,weldr/welder-web,weldr/welder-web,weldr/welder-web,jkozol/welder-web,weldr/welder-web,jkozol/welder-web,jkozol/welder-web