Release v0.4.1 Enhances UX and Secures Key Features

v0.4.1 release focuses on bug fixes and UX improvements. Key breaking updates include optional @external in .vyi files and IERC4626 signature fixes. New tooling features: -Werror, -Wnone flags, and .vyz storage layouts. Venom additions: parser (#4381), DFTPass (#4255), function inliner (#4478), binop and codesize optimizations (#4281, #4333). Security patched GHSA-vgf2-gvx8-xwc3, GHSA-4w26-8p97-f4jp, more. Added pipx install and Telegram badge (#4274, #4342).