Bump serde_json from 1.0.67 to 1.0.68

Created by: dependabot[bot]

Bumps serde_json from 1.0.67 to 1.0.68.

Release notes

Sourced from serde_json's releases.

v1.0.68

• Preserve negative sign of -0 when deserializing to f32 or f64 (#799, #801)

Commits

• 9420d3a Release 1.0.68
• d86e353 Merge pull request #801 from dtolnay/negative0
• 51a4db1 Parse -0 as float -0.0 instead of integer 0
• f5219be Add test parsing -0
• b419f2e Test negative zero parsing to f32
• ef823af Suppress unused field in test_borrow_in_map_key
• f4fc150 Fix dead code warning in issue 795 regression test
• 133bb61 Ignore derivable_impls clippy false positive
• See full diff in compare view

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