chore(deps): update dependency microsoft.openapi to 2.12.2

[github-actions]

This PR contains the following updates:

Package	Change	Age	Confidence
Microsoft.OpenApi	2.7.5 → 2.12.2

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Release Notes

Microsoft/OpenAPI.NET (Microsoft.OpenApi)

v2.12.2

Bug Fixes

• duplicate schema example when serializing to v2 (#​3046) (a6366be)

v2.12.1

Bug Fixes

• circular ref guard (#​3033) (#​3039) (406e6fd)
• harden yaml parsing (#​3034) (fdc5718)

v2.12.0

Features

• adds deserialization of the example extension (095ae3b)
• serialize license identifier as extension for earlier versions (d5cdce8)
• serialize license identifier as extension for earlier versions (fde38d8)

Bug Fixes

• better nullability round-tripping (7a25659)
• bound YAML anchor/alias expansion to prevent OOM (billion laughs) (#​3000) (a361360)
• bound YAML anchor/alias expansion to prevent OOM (billion laughs) (#​3000) (4db9af0)
• library: serialize multiple schema types as anyOf/oneOf for OpenAPI 3.0 (6568896)
• marks deprecated properties from the specification as obsolete (26aba69)
• marks deprecated properties from the specification as obsolete (abc5301)
• schema: serialize compatibility examples from examples list (be57a7c)
• serialize examples as extension in v2/v3 (d27141b)

v2.11.0

Features

• adds support for anchor and id external resolution (557bd6a)
• adds support for anchor and id external resolution (4138e47)
• schema: resolve bare $dynamicRef via $dynamicAnchor index (#​2913) (baf8428)
• schema: resolve bare $dynamicRef via $dynamicAnchor index (#​2913) (a139f83)
• support relative URI resolution in $dynamicRef (#​2928) (#​2945) (6091f5a)
• support relative URI resolution in $dynamicRef (#​2928) (#​2945) (a8688dc)

Bug Fixes

• adds explicit error message for invalid json pointers (#​2955) (a304e56)
• differentiate unset value from null value in OpenApiSchema.Const (#​2936) (a8787af)
• differentiate unset value from null value in OpenApiSchema.Const (#​2936) (e08570f)
• handle nullability more accurately during serialization for 3.0/2.0 (#​2933) (bc11356)
• handle nullability more accurately during serialization for 3.0/2.0 (#​2933) (310b6e2)

v2.10.0

Features

• add JsonConverter for OpenApiSchema System.Text.Json serialization (#​2915) (465521b)
• library: support schema keywords on references (2749463), closes #​2903

Bug Fixes

• Don't silently skip null assignment to OpenApiDocument.Tags (#​2917) (6a45a82)
• handling of nullable enums for 3.0 (#​2920) (f4778e0)
• library: keep v3 schema references ref-only (8d811c3)
• preserve JSON Schema 2020-12 keyword siblings on $ref schemas for OAS 3.1+ (#​2896) (fb20d46)
• preserve JSON Schema 2020-12 keyword siblings on $ref schemas for OAS 3.1+ (#​2896) (c79a83e)
• use async method for crypto flush (677b519)

v2.9.0

Features

• add contains/minContains/maxContains members (fadb422)
• library: add missing json schema properties (db41a3c)

Bug Fixes

• library: always copy unevaluated properties (3951a31)
• library: avoid false circular refs for external schema re-exports (a058913)
• library: avoid false circular refs for external schema re-exports (1bace68)
• library: merge contains compat members into missing properties (7dc45e1)
• library: remove unshipped schema extension fallback (b301827)
• library: use version-specific schema keyword callbacks (f93d76a)
• library: use x-jsonschema schema extensions (ec04a7f)

v2.8.0

Features

• reader: remove ParseNode infrastructure (d7c6a9d)
• Significant performance improvements resulting ~40% reduced allocations when parsing JSON descriptions, ~25% for YAML.

v2.7.6

Bug Fixes

• reader: preserve nullable Null flag when type appears after nullable in V3.1/V3.2 deserializers (288e95a)

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