v4.9.0

Features & improvements:

• new deploy method for contract deployment from creation code [testing framework]
• introduced alias chain = default_chain [testing framework]
• chain.txs can now be indexed with numbers [testing framework]
• chain.chain_id is now cast to uint256 [testing framework]

Fixes:

• fixed process count setting for collecting coverage [testing framework]
• fixed pytypes generator overloading + inheritance issue [testing framework]
• fixed LSP race conditions on files updated outside of IDE (VS Code) [language server]
• fixed add_hover_from_offsets LSP printers API function [language server]
• fixed is_reachable is control flow graph [static analysis]
• fixed recursion in expression_is_only_owner function [static analysis]
• fixed regex parsing from source code containing comments [core]