CLOUDP-307584: Second Rollout for IPA validations

[yelizhenden-mdb]

Proposed changes

Modifies severity level to error for following rules:

xgen-IPA-104-resource-has-GET
xgen-IPA-104-get-method-no-request-body
xgen-IPA-104-get-method-returns-response-suffixed-object
xgen-IPA-104-get-method-response-has-no-input-fields
xgen-IPA-104-get-method-response-code-is-200
xgen-IPA-105-list-method-response-code-is-200
xgen-IPA-105-list-method-no-request-body
xgen-IPA-105-resource-has-list
xgen-IPA-105-list-method-response-is-get-method-response
xgen-IPA-106-create-method-should-not-have-query-parameters
xgen-IPA-106-create-method-request-body-is-request-suffixed-object
xgen-IPA-106-create-method-response-code-is-201
xgen-IPA-106-create-method-request-has-no-readonly-fields

Drive-by: Modify the spectral-lint GH workflow to run with OpenAPI spec of dev environment

Checklist

• I have signed the MongoDB CLA
• I have added tests that prove my fix is effective or that my feature works

Changes to Spectral

• I have read the README file for Spectral Updates

Further comments