chore(deps): Bump github.com/pb33f/libopenapi from 0.18.7 to 0.19.1

Bumps [github.com/pb33f/libopenapi](https://github.com/pb33f/libopenapi) from 0.18.7 to 0.19.1.
- [Release notes](https://github.com/pb33f/libopenapi/releases)
- [Commits](pb33f/libopenapi@v0.18.7...v0.19.1)

---
updated-dependencies:
- dependency-name: github.com/pb33f/libopenapi
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/hashicorp/terraform-plugin-go v0.25.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
 	github.com/iancoleman/strcase v0.3.0
-	github.com/pb33f/libopenapi v0.18.7
+	github.com/pb33f/libopenapi v0.19.1
 	github.com/stretchr/testify v1.10.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/apiextensions-apiserver v0.32.0

go.sum

@@ -295,8 +295,8 @@ github.com/onsi/gomega v1.17.0/go.mod h1:HnhC7FXeEQY45zxNK3PPoIUhzk/80Xly9PcubAl
 github.com/onsi/gomega v1.19.0/go.mod h1:LY+I3pBVzYsTBU1AnDwOSxaYi9WoWiqgwooUqq9yPro=
 github.com/onsi/gomega v1.35.1 h1:Cwbd75ZBPxFSuZ6T+rN/WCb/gOc6YgFBXLlZLhC7Ds4=
 github.com/onsi/gomega v1.35.1/go.mod h1:PvZbdDc8J6XJEpDK4HCuRBm8a6Fzp9/DmhC9C7yFlog=
-github.com/pb33f/libopenapi v0.18.7 h1:gLD4gQ88zEqv7x13SDzk3AUdpHUp9gWrP1NDwrFTy+U=
-github.com/pb33f/libopenapi v0.18.7/go.mod h1:qZRs2IHIcs9SjHPmQfSUCyeD3OY9JkLJQOuFxd0bYCY=
+github.com/pb33f/libopenapi v0.19.1 h1:NbRn0xEKL7xQE6ZK3COc77eg8Laj929QcG8/UFhmV/I=
+github.com/pb33f/libopenapi v0.19.1/go.mod h1:AwkjPGHUra2hWWpApJ1e+WPt0NjK6QZsQHsmaWfluvY=
 github.com/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI=
 github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU=
 github.com/pjbgf/sha1cd v0.3.0 h1:4D5XXmUUBUl/xQ6IjCkEAbqXskkq/4O7LmGn0AqMDs4=