This PR upgrades the dependencies to follow Substrate's polkadot-v0.9.23 branch.
I had to lock the "syn" package version number, otherwise the project would not compile. The error comes from here, syn::group is now private. This issue is fixed at least since polkadot-v0.9.24 so the "lock" may be removed as soon was we upgrade to polkadot-v0.9.24 (I'll submit a PR in the coming weeks).
This PR upgrades the dependencies to follow Substrate's polkadot-v0.9.23 branch.
I had to lock the "syn" package version number, otherwise the project would not compile. The error comes from here,
syn::group
is now private. This issue is fixed at least sincepolkadot-v0.9.24
so the "lock" may be removed as soon was we upgrade to polkadot-v0.9.24 (I'll submit a PR in the coming weeks).