build(deps): Bump github.com/creachadair/taskgroup from 0.3.2 to 0.9.0

Bumps [github.com/creachadair/taskgroup](https://github.com/creachadair/taskgroup) from 0.3.2 to 0.9.0.
- [Commits](creachadair/taskgroup@v0.3.2...v0.9.0)

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

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

go.mod

@@ -39,7 +39,7 @@ require (
 require (
 	github.com/bufbuild/buf v1.4.0
 	github.com/creachadair/atomicfile v0.2.6
-	github.com/creachadair/taskgroup v0.3.2
+	github.com/creachadair/taskgroup v0.9.0
 	github.com/golangci/golangci-lint v1.47.2
 	github.com/google/go-cmp v0.5.8
 	github.com/vektra/mockery/v2 v2.14.0
@@ -246,6 +246,4 @@ require (
 	github.com/syndtr/goleveldb v1.0.1-0.20200815110645-5c35d600f0ca
 )
 
-retract (
-	[v0.35.0,v0.35.9] // See https://github.com/tendermint/tendermint/discussions/9155
-)
+retract [v0.35.0, v0.35.9] // See https://github.com/tendermint/tendermint/discussions/9155

go.sum

@@ -243,8 +243,8 @@ github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46t
 github.com/creachadair/atomicfile v0.2.6 h1:FgYxYvGcqREApTY8Nxg8msM6P/KVKK3ob5h9FaRUTNg=
 github.com/creachadair/atomicfile v0.2.6/go.mod h1:BRq8Une6ckFneYXZQ+kO7p1ZZP3I2fzVzf28JxrIkBc=
 github.com/creachadair/command v0.0.0-20220426235536-a748effdf6a1/go.mod h1:bAM+qFQb/KwWyCc9MLC4U1jvn3XyakqP5QRkds5T6cY=
-github.com/creachadair/taskgroup v0.3.2 h1:zlfutDS+5XG40AOxcHDSThxKzns8Tnr9jnr6VqkYlkM=
-github.com/creachadair/taskgroup v0.3.2/go.mod h1:wieWwecHVzsidg2CsUnFinW1faVN4+kq+TDlRJQ0Wbk=
+github.com/creachadair/taskgroup v0.9.0 h1:kzXSea5C7R5DtnKFBOTEW3hvmCkiVnRkODMVDMgSS6k=
+github.com/creachadair/taskgroup v0.9.0/go.mod h1:+1hJc8zL1rQkxcMVqEYJ0UPGtwl6Iz1+fd4zcOLtt+A=
 github.com/creachadair/tomledit v0.0.23 h1:ohYJjMsxwzj4dDzKaBWFbWH5J+3LO/8CYnlVY+baBWA=
 github.com/creachadair/tomledit v0.0.23/go.mod h1:cIu/4x5L855oSRejIqr+WRFh+mv9g4fWLiUFaApYn/Y=
 github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=