chore(deps): bump zad-cli to v0.6.0 (#49)

Syncs with upstream ZAD API changes from 2026-05-18 and pulls in the
new restore/pvc-snapshots/admin commands and async admin delete. The
actions only call deployment create/delete with --output json, so the
zad-cli CLI changes in v0.6.0 (dropped -s alias, table-rendered list
commands) do not affect this repo.

Author: anneschuth

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+- Bump zad-cli from v0.5.0 to v0.6.0 (restore deployment, pvc-snapshots and admin commands, async admin delete, syncs with upstream ZAD API changes from 2026-05-18; zad-cli drops the `-s` alias and renders list commands as tables, but the actions do not parse that output so no behaviour change here)
+
 ## [4.0.4] - 2026-05-07
 
 ### Changed

scripts/zad-common.sh

@@ -5,7 +5,7 @@
 
 # Install zad-cli if not already available.
 # Pin to a specific version tag to prevent breaking changes.
-ZAD_CLI_VERSION="v0.5.0"
+ZAD_CLI_VERSION="v0.6.0"
 
 install_zad_cli() {
   if command -v zad >/dev/null 2>&1; then