Merge branch 'main' of https://github.com/Tufin/oasdiff into main

detailed header diff in text/html reports

Merge pull request Tufin#78 from Tufin/examples-output

Examples output

Merge pull request Tufin#77 from Tufin/dependabot/go_modules/github.c…

…om/getkin/kin-openapi-0.90.0

Bump github.com/getkin/kin-openapi from 0.89.0 to 0.90.0

Merge pull request Tufin#75 from Tufin/exit-code

Exit-code

readme

fix error capitalization

Merge pull request Tufin#69 from Tufin/schema-cache

schema diff cache and immutable circular logic

Merge pull request Tufin#67 from Tufin/circular-schema

Circular schema

support circular schema ref diff in text format