Use Tarantool version structure across the project

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PR #629 introduced Tarantool version as a structure (both in module and pytest) to solve the issue of migrating to new release policy (#619). Tarantool version as a string is stored in context https://github.com/tarantool/cartridge-cli/blob/ba2f832cad7e164f0b072449eb51b28dfaebc020/cli/context/context.go#L125 and validated with its own regexp https://github.com/tarantool/cartridge-cli/blob/7edd6f9c9e5d83407a8872305118192007131c10/cli/common/tarantool.go#L21

We should explore the code, replace excessive regexps and parsings (if there are some) by replacing them with version as a structure.

Follows up https://github.com/tarantool/cartridge-cli/pull/629#discussion_r757381175

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Blocked until #629 is merged