Bump github.com/BurntSushi/toml from 1.5.0 to 1.6.0

Bumps [github.com/BurntSushi/toml](https://github.com/BurntSushi/toml) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/BurntSushi/toml/releases)
- [Commits](BurntSushi/toml@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: github.com/BurntSushi/toml
  dependency-version: 1.6.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

go.mod

@@ -6,7 +6,7 @@ toolchain go1.24.2
 
 require (
 	cloud.google.com/go/compute v1.52.0
-	github.com/BurntSushi/toml v1.5.0
+	github.com/BurntSushi/toml v1.6.0
 	github.com/cloudbase/garm-provider-common v0.1.8-0.20251001105909-bbcacae60e7c
 	github.com/googleapis/gax-go/v2 v2.16.0
 	github.com/invopop/jsonschema v0.13.0

go.sum

@@ -8,8 +8,8 @@ cloud.google.com/go/compute v1.52.0 h1:SxiTrTFR/QmDbZ0cfo/8VxK/NUZSwn92+iHLDSQ51
 cloud.google.com/go/compute v1.52.0/go.mod h1:zdogTa7daHhEtEX92+S5IARtQmi/RNVPUfoI8Jhl8Do=
 cloud.google.com/go/compute/metadata v0.9.0 h1:pDUj4QMoPejqq20dK0Pg2N4yG9zIkYGdBtwLoEkH9Zs=
 cloud.google.com/go/compute/metadata v0.9.0/go.mod h1:E0bWwX5wTnLPedCKqk3pJmVgCBSM6qQI1yTBdEb3C10=
-github.com/BurntSushi/toml v1.5.0 h1:W5quZX/G/csjUnuI8SUYlsHs9M38FC7znL0lIO+DvMg=
-github.com/BurntSushi/toml v1.5.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
+github.com/BurntSushi/toml v1.6.0 h1:dRaEfpa2VI55EwlIW72hMRHdWouJeRF7TPYhI+AUQjk=
+github.com/BurntSushi/toml v1.6.0/go.mod h1:ukJfTF/6rtPPRCnwkur4qwRxa8vTRFBF0uk2lLoLwho=
 github.com/bahlo/generic-list-go v0.2.0 h1:5sz/EEAK+ls5wF+NeqDpk5+iNdMDXrh3z3nPnH1Wvgk=
 github.com/bahlo/generic-list-go v0.2.0/go.mod h1:2KvAjgMlE5NNynlg/5iLrrCCZ2+5xWbdbCW3pNTGyYg=
 github.com/buger/jsonparser v1.1.1 h1:2PnMjfWD7wBILjqQbt530v576A/cAbQvEW9gGIpYMUs=