Schema validation matches @bitnami as a uri-formatted string.

[TBBle]

Describe the bug

The schema for helm Charts on SchemaStore has the following for the dependencies.repository field:

          "repository": {
            "description": "The repository URL or alias",
            "oneOf": [
              {
                "type": "string",
                "format": "uri"
              },
              {
                "type": "string",
                "pattern": "^@"
              }
            ]
          },

Given a valid Helm Chart.yaml:

apiVersion: v2
name: services
description: Services

type: application

version: 0.1.1

appVersion: 0.1.0

dependencies:
- name: rabbitmq
  repository: '@bitnami'
  version: 8.15.2
- name: mongodb
  repository: '@bitnami'
  version: 8.3.0

validation fails, because the repository string @bitnami appears to match both of the elements of the oneOf.

However, @bitnami is not a valid uri format, as far as I can tell, per the json-schema spec. Per RFC 3986 Secion 4.1 it'd be a valid uri-reference.

It's odd, because it appears yaml-language-server handles this case, but perhaps that logic is not mixing correctly with oneOf? (Or maybe this code isn't code path being used here, and the same logic is missing in some other validation)

Expected Behavior

Valid Helm Chart.yaml validates.

Current Behavior

[{
	"resource": "/C:/Projects/Arsenal/services/charts/premspec-services/Chart.yaml",
	"owner": "_generated_diagnostic_collection_name_#2",
	"severity": 8,
	"message": "Matches multiple schemas when only one must validate.",
	"source": "yaml-schema: Helm Chart.yaml",
	"startLineNumber": 13,
	"startColumn": 15,
	"endLineNumber": 13,
	"endColumn": 16
},{
	"resource": "/C:/Projects/Arsenal/services/charts/premspec-services/Chart.yaml",
	"owner": "_generated_diagnostic_collection_name_#2",
	"severity": 8,
	"message": "Matches multiple schemas when only one must validate.",
	"source": "yaml-schema: Helm Chart.yaml",
	"startLineNumber": 16,
	"startColumn": 15,
	"endLineNumber": 16,
	"endColumn": 16
}]

Steps to Reproduce

1. Create a Chart.yaml with the above content

Environment

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

VSCode 1.62.1, with YAML extension version 1.2.0.