chore(version): bump version for v2

[Jordan-Nelson]

Issue #, if available:

Description of changes:

Breaking Changes

• chore(auth)!: remove deprecated auth types (#4764)
• fix(auth)!: regenerate cognito sdks to update signup operation for adding limit exceeded exception (#4781)
• chore(analytics)!: remove deprecated apis
• chore(api)!: Model .fromJson() Refactor (#4665)
• chore(api)!: Removed deprecated members … (#4772)
• chore(api)!: remove Model.getId() usages (#4774)
• chore(core)!: make asyncConfig internal
• chore(core)!: removed toJson fallback (#4793)
• feat(core)!: use plugin options for optional plugin parameters (#4762)
• feat(smithy)!: remove error match on http status code (#4750)
• feat(storage)!: Update storage APIs to accept StoragePath (#4713)
• feat(storage)!: move delimiter to S3ListPluginOptions (#4773)
• chore(storage)!: rename StorageNotFoundException (#4770)

Features

• feat(api): Add attributeExists query predicate (#4134)

Fixes

• fix(auth): Android Intent URI Query Parameter Parsing (#4546)
• fix(auth): map Lambda exceptions correctly (#4804)

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