fix: move bignum-dependent multipleOf tests to optional/bignum.json#866

Sagar-6203620715 wants to merge 1 commit intojson-schema-org:mainjson-schema-org/JSON-Schema-Test-Suite:mainfrom

Sagar-6203620715:move-bignum-multipleof-to-optionalSagar-6203620715/JSON-Schema-Test-Suite:move-bignum-multipleof-to-optionalCopy head branch name to clipboard