Updated dojo packages fix security vulnerability

Updated dojo package fixes security vulnerabilities: In affected versions of dojo, the deepCopy method is vulnerable to prototype Pollution. An attacker could manipulate these attributes to overwrite, or pollute, a JavaScript application object prototype of the base object by injecting other values (CVE-2020-5258). The Dojox jQuery wrapper jqMix mixin method is vulnerable to Prototype Pollution. An attacker could manipulate these attributes to overwrite, or pollute, a JavaScript application object prototype of the base object by injecting other values (CVE-2020-5259).