Use alias while dumping json

[prabhu]

jsonschema validation was failing without this

[
  {
    instancePath: '/metadata/component',
    schemaPath: '#/additionalProperties',
    keyword: 'additionalProperties',
    params: { additionalProperty: 'bom_ref' },
    message: 'must NOT have additional properties'
  }
]

[
  {
    instancePath: '/dependencies',
    schemaPath: '#/properties/dependencies/uniqueItems',
    keyword: 'uniqueItems',
    params: { i: 97, j: 48 },
    message: 'must NOT have duplicate items (items ## 48 and 97 are identical)'
  }
]