Bump proc-macro-warning from 0.4.1 to 0.4.2#1376

ggwpez merged 1 commit intomasterparitytech/polkadot-sdk:masterfrom

dependabot/cargo/proc-macro-warning-0.4.2paritytech/polkadot-sdk:dependabot/cargo/proc-macro-warning-0.4.2Copy head branch name to clipboard