Bump regex from 1.1.0 to 1.5.6 in /Chapter13/hyperurl#22

dependabot[bot] wants to merge 1 commit intomasterPacktPublishing/The-Complete-Rust-Programming-Reference-Guide:masterfrom

dependabot/cargo/Chapter13/hyperurl/regex-1.5.6PacktPublishing/The-Complete-Rust-Programming-Reference-Guide:dependabot/cargo/Chapter13/hyperurl/regex-1.5.6Copy head branch name to clipboard