Maker Badges 0.10.0 Sokol

What's Changed

• xDai: MakerBadges Rafactoring + HardHat Migration by @naszam in #2
• Integrate Ad-Hoc OpenZeppelin Defender Meta Txs by @naszam in #3
• More Testing & Sanity Checks by @naszam in #5
• Solc 0.8.4 + Optimizations + Bumps by @naszam in #12
• Update MakerBadges Echidna Tests by @naszam in #10
• Use echidna-version action input key by @naszam in #20
• Use Slither Action by @naszam in #19
• Improvements by @naszam in #15

Full Changelog: v0.9.0...v0.10.0