BigInt keys false reported as duplicate in map objects

[jovfer]

Describe the bug

If a map contains several keys represented as large integers, false-positive key duplication error is reported

Expected Behavior

No error

Current Behavior

Key duplication error

Steps to Reproduce

The following yaml should be valid, but validation failed

123456789012345671: 1
123456789012345672: 2

Environment

• Windows
• Mac
• Linux
• other (please specify)
  Tested on Mac, likely general issue

[datho7561]

This is a limitation of eemeli/yaml, which we use for parsing files. Here's some added context: eemeli/yaml#657 (comment), eemeli/yaml#660

[datho7561]

Took a look at the PR you opened, it seems to fix the issue