v1.40.5

What's Changed

• Support $ref and $defs in JSON Schema by @eiixy in #1030
• Improve unit test coverage by @sashabaranov in #1032
• Removed root $ref from GenerateSchemaForType by @eiixy in #1033
• Increase test coverage by @sashabaranov in #1036
• Configure Codecov to ignore examples & test helpers by @sashabaranov in #1038
• Improve image.go test coverage to 100% by @sashabaranov in #1039

Full Changelog: v1.40.4...v1.40.5