Bump cuddle to 1.8.0.0

[joaosreis]

No description provided.

[Copilot]

Pull request overview

Updates the codebase to build against cuddle ≥ 1.8 by accommodating validateCBOR’s new Either-returning API, and bumps the lower bound on cuddle across packages/tests.

Changes:

• Bump cuddle dependency lower bound from >=1.7 to >=1.8 in affected .cabal files.
• Update CBOR validation call sites to handle Left parse errors returned by validateCBOR.
• Refresh Nix flake lockfile for the Hackage snapshot input.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
scls-util/src/Cardano/SCLS/Util/Verify.hs	Handle validateCBOR parse failures and surface them as CBORParseError.
scls-cardano/test/Conformance.hs	Treat validateCBOR parse failures as test failures with an error message.
scls-cardano/cddl-validate/Cardano/SCLS/CDDL/Validate.hs	Adapt validateBytesAgainst to Either by dropping parse failures to Nothing.
scls-util/scls-util.cabal	Bump cuddle lower bound to >=1.8.
scls-format/scls-format.cabal	Bump cuddle lower bound to >=1.8 (test suite deps).
scls-core/scls-core.cabal	Bump cuddle lower bound to >=1.8.
scls-cardano/scls-cardano.cabal	Bump cuddle lower bound to >=1.8 across components.
flake.lock	Update hackage.nix input revision/hash.

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