Bump github.com/slackhq/nebula from 1.6.1 to 1.9.0

Bumps [github.com/slackhq/nebula](https://github.com/slackhq/nebula) from 1.6.1 to 1.9.0.
- [Release notes](https://github.com/slackhq/nebula/releases)
- [Changelog](https://github.com/slackhq/nebula/blob/master/CHANGELOG.md)
- [Commits](https://github.com/slackhq/nebula/compare/v1.6.1...v1.9.0)

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

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

go.mod

@@ -1,6 +1,7 @@
 module github.com/smallstep/certificates
 
 go 1.21
+toolchain go1.22.2
 
 require (
 	cloud.google.com/go/longrunning v0.5.7
@@ -24,7 +25,7 @@ require (
 	github.com/prometheus/client_golang v1.19.1
 	github.com/rs/xid v1.5.0
 	github.com/sirupsen/logrus v1.9.3
-	github.com/slackhq/nebula v1.6.1
+	github.com/slackhq/nebula v1.9.0
 	github.com/smallstep/assert v0.0.0-20200723003110-82e2b9b3b262
 	github.com/smallstep/go-attestation v0.4.4-0.20240109183208-413678f90935
 	github.com/smallstep/nosql v0.6.1

go.sum

@@ -433,8 +433,8 @@ github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMB
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/slackhq/nebula v1.6.1 h1:/OCTR3abj0Sbf2nGoLUrdDXImrCv0ZVFpVPP5qa0DsM=
-github.com/slackhq/nebula v1.6.1/go.mod h1:UmkqnXe4O53QwToSl/gG7sM4BroQwAB7dd4hUaT6MlI=
+github.com/slackhq/nebula v1.9.0 h1:VuwN/PMKKrOoGAcjTnS1hrvxiyBg14N6gv59EWTlzGg=
+github.com/slackhq/nebula v1.9.0/go.mod h1:PMJer5rZe0H/O+kUiKOL9AJ/pL9+ryzNXtSN7ABfjfM=
 github.com/smallstep/assert v0.0.0-20200723003110-82e2b9b3b262 h1:unQFBIznI+VYD1/1fApl1A+9VcBk+9dcqGfnePY87LY=
 github.com/smallstep/assert v0.0.0-20200723003110-82e2b9b3b262/go.mod h1:MyOHs9Po2fbM1LHej6sBUT8ozbxmMOFG+E+rx/GSGuc=
 github.com/smallstep/go-attestation v0.4.4-0.20240109183208-413678f90935 h1:kjYvkvS/Wdy0PVRDUAA0gGJIVSEZYhiAJtfwYgOYoGA=