feat: error package independent by hardhat

What's Changed

• fix: diagrams titles by @rodolfopietro97 in #666
• fix: coverage by @rodolfopietro97 in #667
• build(deps): bump elliptic from 6.5.4 to 6.5.5 by @dependabot in #671
• build(deps-dev): bump typedoc from 0.25.9 to 0.25.11 by @dependabot in #672
• build(deps-dev): bump hardhat from 2.20.1 to 2.21.0 by @dependabot in #669
• fix: remove hardhat dependency from errors package by @rodolfopietro97 in #673

Full Changelog: v0.0.12...v0.0.13