add SendBounceIfActionFail flag for sendmode from TVM update

[Gusarich]

closes #121

[anton-trunov]

Thanks :) Could you please also add

• an entry to the changelog, similar to https://github.com/tact-lang/tact/blob/eb0aa0c7a5aa744b93563c522bd42974ae0f877c/CHANGELOG.md#added-36
• and a PR to tact-docs with the new entry in the table here: https://github.com/tact-lang/tact-docs/blob/main/pages/language/ref/message-modes.mdx (please link the PR here for future reference)