chore(release): 1.2.0

[chenliu0831]

Issue #, if available: N/A, chore release

Description of changes: Release those changes https://github.com/awslabs/python-deequ/compare/04e26342ace80ab33de32a6d89d4676a5d336aa9...release/1_2_0

• feat: support where filter https://github.com/awslabs/python-deequ/pull/176
• fix: add assertion and hints for isContainedIn and hasPattern; Add is_one and use as default assertion (https://github.com/awslabs/python-deequ/pull/157)

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