TCS: release activities for 1.2

[lenkis]

Related dev. resources:

• Release card for TCS 1.2: https://jira.vk.team/browse/PRODUCTS-2023
• Dev ticket: none

Product: TCS
Since: 1.2
Audience/target: admins, end users (finops)
Root document: https://www.tarantool.io/ru/column-store/doc/latest/
SME: @ Galiev-Ruslan

Details

Release activities:

• RN
• update/rollback
• docx brushup
• docx/pdf upload