ignoreDescriptionChanges rule missing TYPE_DESCRIPTION_ADDED

[dhay]

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Describe the bug

To Reproduce Steps to reproduce the behavior:

Expected behavior

The ignoreDescriptionChanges rule is missing the TypeDescriptionAdded from the list of change types that it ignores.

expect(await diff(
  buildSchema(`type MyType { id: ID! }`,
  buildSchema(`"""Description here""" type MyType { id: ID! }`), [
    DiffRule.ignoreDescriptionChanges
  ])).toHaveLength(0);

However, this fails with a change type of "TYPE_DESCRIPTION_ADDED"

Environment:

• OS:
• @graphql-inspector/...: 3.4.0
• graphql: 16.6.0
• NodeJS: 16.14.2

Additional context

[czarek-floenergy]

It's also missing the TYPE_DESCRIPTION_REMOVED rule.