Dependency sp-maybe-compressed-blob version bump to 4.1.0-dev

[arjanz]

When building https://github.com/polkascan/py-subwasm-bindings it results in the following build error:

error: no matching package found
searched package name: `sp-maybe-compressed-blob`
prerelease package needs to be specified explicitly
sp-maybe-compressed-blob = { version = "4.1.0-dev" }
location searched: https://github.com/paritytech/substrate/
required by package `wasm-loader v0.16.0 (https://github.com/chevdor/subwasm?tag=v0.16.0#80fc9e7d)

Probably because of recent version bump of https://github.com/paritytech/substrate/blob/master/primitives/maybe-compressed-blob/Cargo.toml

[chevdor]

Did you try using rust stable and making sure you use --locked ?

[chevdor]

You definitely should do the above but I will merge this PR eitherway as soon as I am done testing.

[chevdor]

So you can reproduce this using cargo update --dry-run:

error: no matching package found
searched package name: `sp-maybe-compressed-blob`
prerelease package needs to be specified explicitly
sp-maybe-compressed-blob = { version = "4.1.0-dev" }
location searched: https://github.com/paritytech/substrate/
required by package `wasm-loader v0.16.1 (/Users/Shared/projects/subwasm/libs/wasm-loader)`

Using --locked prevents the update so it it preferable in any case.