Bump github.com/hashicorp/terraform-plugin-mux from 0.17.0 to 0.18.0 (elastic#995)

Bumps [github.com/hashicorp/terraform-plugin-mux](https://github.com/hashicorp/terraform-plugin-mux) from 0.17.0 to 0.18.0.
- [Release notes](https://github.com/hashicorp/terraform-plugin-mux/releases)
- [Changelog](https://github.com/hashicorp/terraform-plugin-mux/blob/main/CHANGELOG.md)
- [Commits](hashicorp/terraform-plugin-mux@v0.17.0...v0.18.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/terraform-plugin-mux
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -17,7 +17,7 @@ require (
 	github.com/hashicorp/terraform-plugin-framework-validators v0.16.0
 	github.com/hashicorp/terraform-plugin-go v0.26.0
 	github.com/hashicorp/terraform-plugin-log v0.9.0
-	github.com/hashicorp/terraform-plugin-mux v0.17.0
+	github.com/hashicorp/terraform-plugin-mux v0.18.0
 	github.com/hashicorp/terraform-plugin-sdk/v2 v2.35.0
 	github.com/mitchellh/mapstructure v1.5.0
 	github.com/oapi-codegen/oapi-codegen/v2 v2.4.1

go.sum

@@ -105,8 +105,8 @@ github.com/hashicorp/terraform-plugin-go v0.26.0 h1:cuIzCv4qwigug3OS7iKhpGAbZTiy
 github.com/hashicorp/terraform-plugin-go v0.26.0/go.mod h1:+CXjuLDiFgqR+GcrM5a2E2Kal5t5q2jb0E3D57tTdNY=
 github.com/hashicorp/terraform-plugin-log v0.9.0 h1:i7hOA+vdAItN1/7UrfBqBwvYPQ9TFvymaRGZED3FCV0=
 github.com/hashicorp/terraform-plugin-log v0.9.0/go.mod h1:rKL8egZQ/eXSyDqzLUuwUYLVdlYeamldAHSxjUFADow=
-github.com/hashicorp/terraform-plugin-mux v0.17.0 h1:/J3vv3Ps2ISkbLPiZOLspFcIZ0v5ycUXCEQScudGCCw=
-github.com/hashicorp/terraform-plugin-mux v0.17.0/go.mod h1:yWuM9U1Jg8DryNfvCp+lH70WcYv6D8aooQxxxIzFDsE=
+github.com/hashicorp/terraform-plugin-mux v0.18.0 h1:7491JFSpWyAe0v9YqBT+kel7mzHAbO5EpxxT0cUL/Ms=
+github.com/hashicorp/terraform-plugin-mux v0.18.0/go.mod h1:Ho1g4Rr8qv0qTJlcRKfjjXTIO67LNbDtM6r+zHUNHJQ=
 github.com/hashicorp/terraform-plugin-sdk/v2 v2.35.0 h1:wyKCCtn6pBBL46c1uIIBNUOWlNfYXfXpVo16iDyLp8Y=
 github.com/hashicorp/terraform-plugin-sdk/v2 v2.35.0/go.mod h1:B0Al8NyYVr8Mp/KLwssKXG1RqnTk7FySqSn4fRuLNgw=
 github.com/hashicorp/terraform-registry-address v0.2.4 h1:JXu/zHB2Ymg/TGVCRu10XqNa4Sh2bWcqCNyKWjnCPJA=