chore(deps): update dependency microsoft.openapi.readers to 1.6.28

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
Microsoft.OpenApi.Readers	1.6.23 -> 1.6.28

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Release Notes

Microsoft/OpenAPI.NET (Microsoft.OpenApi.Readers)

v1.6.28

Bug Fixes

• Improve server creation and URL handling logic to maintain port (a15c50e)
• missing deserialization for header content property in 3.0 (7c65a49)
• missing deserialization for header content property in 3.0 (e256d29)

v1.6.27

Bug Fixes

• typo in encoding allow reserved deserialization (6eeca52)
• typo in encoding allow reserved deserialization (3fadb7d)

v1.6.26

Bug Fixes

• OpenApiEncoding explode default value when using form style (09b5a28)

v1.6.25

Bug Fixes

• missing examples when one example is with an empty array. (4697af4)

v1.6.24

Bug Fixes

• a flaky behaviour for format property serialization (e072790)
• a flaky behaviour for format property serialization (4d06f86)
• null reference on alternate keys during hidi transform (17247ed)
• null reference on alternate keys during hidi transform (55f0f54)

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Configuration

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