`spec-strict-ref` rule failing when $ref used in components section

[danielbecroft]

We're starting to implement the redocly-cli linter into our API documentation.

We have separated out our API definition, specifically with the components section into separate files, but the @redocly/cli lint command is failing on rule spec-strict-rules.

In our openapi.yaml file we have:

components:
  parameters:
    $ref: "./parameters/_index.yaml"
  securitySchemes:
    $ref: "./security-schemes.yaml"
  schemas:
    $ref: "./schemas/_index.yaml"
  examples:
    $ref: "./examples/_index.yaml"

The bundle etc commands all reference these files correctly and pull in the information, but the linter rule is failing.

I'm not sure if this is a bug with the lint rule itself, or an issue with how we have defined our documentation (although given all other operations work, my feeling is it's with the rule).