Go: Bump github.com/go-openapi/spec from 0.20.8 to 0.20.14 (#7201)

Bumps [github.com/go-openapi/spec](https://github.com/go-openapi/spec) from 0.20.8 to 0.20.14.
- [Commits](go-openapi/spec@v0.20.8...v0.20.14)

---
updated-dependencies:
- dependency-name: github.com/go-openapi/spec
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -20,7 +20,7 @@ require (
 	github.com/go-git/go-git/v5 v5.11.0
 	github.com/go-openapi/jsonpointer v0.20.2
 	github.com/go-openapi/jsonreference v0.20.4
-	github.com/go-openapi/spec v0.20.8
+	github.com/go-openapi/spec v0.20.14
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.6.0
 	github.com/google/uuid v1.4.0