Workaround genco bug

[giladchase]

Looks like genco = 0.17.7 from last month breaks compilation. This is a dependency of cairo-lang-starknet, which is why we need the cargo-udeps flag (it isn't used inside starknet-api at all).

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This change is 

[elintul]

Reviewed 1 of 1 files at r1, all commit messages.
Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @dan-starkware and @giladchase)

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Cargo.toml line 18 at r1 (raw file):

# TODO(Gilad): Remove `genco` dep once the issue with its 0.17.7 release
# is fixed, or no longer a dependency of cairo-lang-starknet.
genco = "=0.17.6"

Suggestion:

<=0.17.6

[giladchase]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @dan-starkware and @elintul)

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Cargo.toml line 18 at r1 (raw file):

# TODO(Gilad): Remove `genco` dep once the issue with its 0.17.7 release
# is fixed, or no longer a dependency of cairo-lang-starknet.
genco = "=0.17.6"

Doesn't seem to work, also < 0.17.7, not sure why 🤔
Only = seems to be strict

[giladchase]

Reviewable status: all files reviewed, 1 unresolved discussion (waiting on @dan-starkware and @elintul)

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Cargo.toml line 18 at r1 (raw file):

Previously, giladchase wrote…

Doesn't seem to work, also < 0.17.7, not sure why 🤔
Only = seems to be strict

Can i merge it with =0.17.6?

[elintul]

Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @dan-starkware)