NodleCode/chain 2.1.0-rc001

Release 2.1.0 release candidate 001

on GitHub

What changed

• Bump enumflags2 from 0.7.5 to 0.7.7 (#734)
• Bump h2 from 0.3.16 to 0.3.19 (#744)
• (fix) ci srtool (#743)
• Upgrade to polkadot 0.9.40 (#735)
• collator selection config optim (#730)
• fix and improve devcontainer prebuild (#737)
• Optimize github actions to be cheaper and cleaner (#736)