Update dependency defenseunicorns/zarf to v0.21.2

This MR contains the following updates:

Package	Type	Update	Change
defenseunicorns/zarf	ironbank-github	patch	v0.21.1 -> v0.21.2
defenseunicorns/zarf		patch	v0.21.1 -> v0.21.2

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Release Notes

defenseunicorns/zarf

v0.21.2

Compare Source

What's Changed

• Add error checking to surveys by @​Racer159 in https://github.com/defenseunicorns/zarf/pull/665
• Handle release versions on init in a backwards compatible way by @​Racer159 in https://github.com/defenseunicorns/zarf/pull/663
• Big Bang 1.37 -> 1.39 & Fix K3s LB Zarf Agent Issue by @​jeff-mccoy in https://github.com/defenseunicorns/zarf/pull/668
• Update module helm.sh/helm/v3 to v3.9.3 by @​renovate in https://github.com/defenseunicorns/zarf/pull/669
• Small terminal UI improvements by @​jeff-mccoy in https://github.com/defenseunicorns/zarf/pull/670
• Include kustomizations in manifest count by @​jeff-mccoy in https://github.com/defenseunicorns/zarf/pull/671

Full Changelog: https://github.com/defenseunicorns/zarf/compare/v0.21.1...v0.21.2

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