Using `bool` values in `enum` and `const` generates a validation error for valid values

[Kosta-Github]

Describe the bug

When using a boolean value in an enum schema (e.g.: enum: [true]) validation fails for a valid value.

The error message is: Value is not accepted. Valid values: true.

For example, the OpenAPI 3.0 spec is using such a mechanism in its schema.

Expected Behavior

The schema validation should pass without an issue.

Current Behavior

The schema validation generates this error message: Value is not accepted. Valid values: true.

Steps to Reproduce

Place these 2 files next to each other:

schema.yaml:

$schema: "http://json-schema.org/draft-07/schema#"
type: object
properties:
  value:
    enum: [true]

test.yaml:

# yaml-language-server: $schema=./schema.yaml

value: true

Environment

• Windows
• Mac
• Linux
• other (please specify)

Latest version of the extension: 1.18.0

[Kosta-Github]

BTW, a similar error is created if using boolean in a const:

Steps to Reproduce

Place these 2 files next to each other:

schema.yaml:

$schema: "https://json-schema.org/draft/2020-12/schema"
type: object
properties:
  value:
    const: true

test.yaml:

# yaml-language-server: $schema=./schema.yaml

value: true