v2.2.0

• Add support for ThoughtSpot Cloud 10.5.0
• Add CONTRIBUTING.md and modernize the CI toolchain
• Clean _scriptability.py generator code and make it more robust
• Pin betterproto == 2.0.0b6 (avoid #24)
• Removed support for Python 3.8

Full Changelog: v2.1.1...v2.2.0

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📦 PyPi thoughtspot_tml == 2.2.0