Go: Bump github.com/go-openapi/spec from 0.19.5 to 0.20.8

Bumps [github.com/go-openapi/spec](https://github.com/go-openapi/spec) from 0.19.5 to 0.20.8.
- [Release notes](https://github.com/go-openapi/spec/releases)
- [Commits](go-openapi/spec@v0.19.5...v0.20.8)

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

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -19,7 +19,7 @@ require (
 	github.com/go-git/go-git/v5 v5.4.2
 	github.com/go-openapi/jsonpointer v0.19.6
 	github.com/go-openapi/jsonreference v0.20.1
-	github.com/go-openapi/spec v0.19.5
+	github.com/go-openapi/spec v0.20.8
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.9
 	github.com/jedib0t/go-pretty/v6 v6.4.3

go.sum

@@ -541,6 +541,7 @@ github.com/go-openapi/jsonreference v0.18.0/go.mod h1:g4xxGn04lDIRh0GJb5QlpE3Hfo
 github.com/go-openapi/jsonreference v0.19.2/go.mod h1:jMjeRr2HHw6nAVajTXJ4eiUwohSTlpa0o73RUL1owJc=
 github.com/go-openapi/jsonreference v0.19.3/go.mod h1:rjx6GuL8TTa9VaixXglHmQmIL98+wF9xc8zWvFonSJ8=
 github.com/go-openapi/jsonreference v0.19.5/go.mod h1:RdybgQwPxbL4UEjuAruzK1x3nE69AqPYEJeo/TWfEeg=
+github.com/go-openapi/jsonreference v0.20.0/go.mod h1:Ag74Ico3lPc+zR+qjn4XBUmXymS4zJbYVCZmcgkasdo=
 github.com/go-openapi/jsonreference v0.20.1 h1:FBLnyygC4/IZZr893oiomc9XaghoveYTrLC1F86HID8=
 github.com/go-openapi/jsonreference v0.20.1/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En5Ap4rVB5KVcIDZG2k=
 github.com/go-openapi/loads v0.17.0/go.mod h1:72tmFy5wsWx89uEVddd0RjRWPZm92WRLhf7AC+0+OOU=
@@ -556,8 +557,9 @@ github.com/go-openapi/spec v0.17.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsd
 github.com/go-openapi/spec v0.18.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsdfssdxcBI=
 github.com/go-openapi/spec v0.19.2/go.mod h1:sCxk3jxKgioEJikev4fgkNmwS+3kuYdJtcsZsD5zxMY=
 github.com/go-openapi/spec v0.19.3/go.mod h1:FpwSN1ksY1eteniUU7X0N/BgJ7a4WvBFVA8Lj9mJglo=
-github.com/go-openapi/spec v0.19.5 h1:Xm0Ao53uqnk9QE/LlYV5DEU09UAgpliA85QoT9LzqPw=
 github.com/go-openapi/spec v0.19.5/go.mod h1:Hm2Jr4jv8G1ciIAo+frC/Ft+rR2kQDh8JHKHb3gWUSk=
+github.com/go-openapi/spec v0.20.8 h1:ubHmXNY3FCIOinT8RNrrPfGc9t7I1qhPtdOGoG2AxRU=
+github.com/go-openapi/spec v0.20.8/go.mod h1:2OpW+JddWPrpXSCIX8eOx7lZ5iyuWj3RYR6VaaBKcWA=
 github.com/go-openapi/strfmt v0.17.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pLP5l494TcyU=
 github.com/go-openapi/strfmt v0.18.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pLP5l494TcyU=
 github.com/go-openapi/strfmt v0.19.0/go.mod h1:+uW+93UVvGGq2qGaZxdDeJqSAqBqBdl+ZPMF/cC8nDY=
@@ -568,6 +570,7 @@ github.com/go-openapi/swag v0.18.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/
 github.com/go-openapi/swag v0.19.2/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-openapi/swag v0.19.14/go.mod h1:QYRuS/SOXUCsnplDa677K7+DxSOj6IPNl/eQntq43wQ=
+github.com/go-openapi/swag v0.19.15/go.mod h1:QYRuS/SOXUCsnplDa677K7+DxSOj6IPNl/eQntq43wQ=
 github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/g=
 github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
 github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+MYsct2VUrAJ4=