Bump truffle from 5.8.1 to 5.9.1#108

dependabot[bot] wants to merge 1 commit intomainsolidity-utilities/library-mapping-string:mainfrom

dependabot/npm_and_yarn/main/truffle-5.9.1solidity-utilities/library-mapping-string:dependabot/npm_and_yarn/main/truffle-5.9.1Copy head branch name to clipboard