Symfony version(s) affected

6.3.0

Description

PR #42721 escapes all markdown characters literally making the MARKDOWN_V2 mode useless.

See #42721 (comment) and #42697 (comment)

How to reproduce

Use telegram transport without specifying parse mode or specify parse mode as MARKDOWN_V2, all markdown tags like __, `, etc will be printed as in.

Possible Solution

Revert #42721 or alternatively escape these characters if parse mode is not markdown_v2.

Additional Context

No response