build(deps): bump github.com/hashicorp/copywrite in /tools (#268)

Bumps [github.com/hashicorp/copywrite](https://github.com/hashicorp/copywrite) from 0.20.0 to 0.21.0.
- [Release notes](https://github.com/hashicorp/copywrite/releases)
- [Changelog](https://github.com/hashicorp/copywrite/blob/main/.goreleaser.yaml)
- [Commits](hashicorp/copywrite@v0.20.0...v0.21.0)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/copywrite
  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]

tools/go.mod

@@ -2,7 +2,7 @@ module tools
 
 go 1.22.7
 
-require github.com/hashicorp/copywrite v0.20.0
+require github.com/hashicorp/copywrite v0.21.0
 
 require (
 	github.com/AlecAivazis/survey/v2 v2.3.7 // indirect

tools/go.sum

@@ -144,8 +144,8 @@ github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgf
 github.com/grpc-ecosystem/grpc-gateway v1.16.0/go.mod h1:BDjrQk3hbvj6Nolgz8mAMFbcEtjT1g+wF4CSlocrBnw=
 github.com/hashicorp/consul/api v1.13.0/go.mod h1:ZlVrynguJKcYr54zGaDbaL3fOvKC9m72FhPvA8T35KQ=
 github.com/hashicorp/consul/sdk v0.8.0/go.mod h1:GBvyrGALthsZObzUGsfgHZQDXjg4lOjagTIwIR1vPms=
-github.com/hashicorp/copywrite v0.20.0 h1:i+iNq4lWsGopKIhC0HfZjUvNAnXnU/Pc5e+4L5WF+1Y=
-github.com/hashicorp/copywrite v0.20.0/go.mod h1:mu6DAyUI6m6vq8weoJn9a0HDuUUrV+0GQdRp4mD50yU=
+github.com/hashicorp/copywrite v0.21.0 h1:IE8uByQdos8s0uAyHF4O8RHV5cJEhmIc+Awk+wkKXKI=
+github.com/hashicorp/copywrite v0.21.0/go.mod h1:mu6DAyUI6m6vq8weoJn9a0HDuUUrV+0GQdRp4mD50yU=
 github.com/hashicorp/errwrap v1.0.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-cleanhttp v0.5.0/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=
 github.com/hashicorp/go-cleanhttp v0.5.1/go.mod h1:JpRdi6/HCYpAwUzNwuwqhbovhLtngrth3wmdIIUrZ80=