v0.4.0b5

What's Changed

• feat[ir]: add eval_once sanity fences to more builtins by @charles-cooper in #3835
• chore[ci]: merge mypy job into lint by @charles-cooper in #3840
• fix[ir]: unique symbol name by @trocher in #3848
• feat[ir]: emit djump in dense selector table by @harkal in #3849
• feat[tool]: improvements to AST annotation by @charles-cooper in #3829
• docs: typo in test comment by @eltociear in #3850
• feat[tool]: add node_id map to source map by @charles-cooper in #3811
• feat[lang]: allow downcasting of bytestrings by @charles-cooper in #3832
• feat: drop istanbul and berlin support by @charles-cooper in #3843

Full Changelog: v0.4.0b4...v0.4.0b5