build(deps): bump github.com/zclconf/go-cty from 1.17.0 to 1.18.0 (#567)

Bumps [github.com/zclconf/go-cty](https://github.com/zclconf/go-cty) from 1.17.0 to 1.18.0.
- [Release notes](https://github.com/zclconf/go-cty/releases)
- [Changelog](https://github.com/zclconf/go-cty/blob/main/CHANGELOG.md)
- [Commits](zclconf/go-cty@v1.17.0...v1.18.0)

---
updated-dependencies:
- dependency-name: github.com/zclconf/go-cty
  dependency-version: 1.18.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -1,6 +1,6 @@
 module github.com/hashicorp/terraform-plugin-docs
 
-go 1.24.0
+go 1.25
 
 require (
 	github.com/Kunde21/markdownfmt/v3 v3.1.0
@@ -15,7 +15,7 @@ require (
 	github.com/rogpeppe/go-internal v1.14.1
 	github.com/yuin/goldmark v1.7.7
 	github.com/yuin/goldmark-meta v1.1.0
-	github.com/zclconf/go-cty v1.17.0
+	github.com/zclconf/go-cty v1.18.0
 	go.abhg.dev/goldmark/frontmatter v0.2.0
 	golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df
 	golang.org/x/text v0.34.0

go.sum

@@ -132,8 +132,8 @@ github.com/yuin/goldmark v1.7.7 h1:5m9rrB1sW3JUMToKFQfb+FGt1U7r57IHu5GrYrG2nqU=
 github.com/yuin/goldmark v1.7.7/go.mod h1:uzxRWxtg69N339t3louHJ7+O03ezfj6PlliRlaOzY1E=
 github.com/yuin/goldmark-meta v1.1.0 h1:pWw+JLHGZe8Rk0EGsMVssiNb/AaPMHfSRszZeUeiOUc=
 github.com/yuin/goldmark-meta v1.1.0/go.mod h1:U4spWENafuA7Zyg+Lj5RqK/MF+ovMYtBvXi1lBb2VP0=
-github.com/zclconf/go-cty v1.17.0 h1:seZvECve6XX4tmnvRzWtJNHdscMtYEx5R7bnnVyd/d0=
-github.com/zclconf/go-cty v1.17.0/go.mod h1:wqFzcImaLTI6A5HfsRwB0nj5n0MRZFwmey8YoFPPs3U=
+github.com/zclconf/go-cty v1.18.0 h1:pJ8+HNI4gFoyRNqVE37wWbJWVw43BZczFo7KUoRczaA=
+github.com/zclconf/go-cty v1.18.0/go.mod h1:qpnV6EDNgC1sns/AleL1fvatHw72j+S+nS+MJ+T2CSg=
 go.abhg.dev/goldmark/frontmatter v0.2.0 h1:P8kPG0YkL12+aYk2yU3xHv4tcXzeVnN+gU0tJ5JnxRw=
 go.abhg.dev/goldmark/frontmatter v0.2.0/go.mod h1:XqrEkZuM57djk7zrlRUB02x8I5J0px76YjkOzhB4YlU=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=