False positive: `oas3-examples-value-or-externalValue` incorrectly reported on valid examples when broken `$ref` exists

[Relequestual]

Description

The oas3-examples-value-or-externalValue rule incorrectly reports errors against valid examples in components/examples when there are broken $ref references to non-existent examples elsewhere in the OpenAPI file.

Expected Behavior

• Valid examples with proper value or externalValue fields should pass validation
• The oas3-examples-value-or-externalValue rule should not trigger false positives

Actual Behavior

• Valid examples in components/examples that have proper value fields are incorrectly flagged
• Error is reported at path: ["components", "examples"] instead of the broken reference location

Minimal Reproduction

File: minimal-reproduction.yaml

openapi: 3.0.3
info:
  title: Minimal Test
  version: 1.0.0
paths:
  /test:
    get:
      responses:
        '200':
          content:
            application/json:
              examples:
                test:
                  $ref: '#/components/examples/non-existent'  # ← BROKEN REFERENCE
components:
  examples:
    valid-example:      # ← CORRECTLY FORMATTED
      value:
        test: "data"

Command to reproduce:

spectral lint minimal-reproduction.yaml

Expected output: Error about broken $ref reference
Actual output:

{
  "code": "oas3-examples-value-or-externalValue",
  "path": ["components", "examples"],
  "message": "Examples must have either \"value\" or \"externalValue\" field.",
  "range": {
    "start": {"line": 15, "character": 11},
    "end": {"line": 18, "character": 20}
  }
}