feat: add cairo-lint ci

[okhaimie-dev]

• [x] issue https://github.com/keep-starknet-strange/shinigami/issues/239
• [x] follows contribution guide
• [ ] code change includes tests

Added cairo-lint to the ci pipeline

[vercel[bot]]

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[b-j-roberts]

Hey, shouldn't the cairo-lint CI be failing here due to the existing lint warnings?