Update canonical/data-platform-workflows action to v16.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
canonical/data-platform-workflows	action	minor	v16.2.1 -> v16.3.0

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Release Notes

canonical/data-platform-workflows (canonical/data-platform-workflows)

### [`v16.3.0`](https://togithub.com/canonical/data-platform-workflows/releases/tag/v16.3.0) [Compare Source](https://togithub.com/canonical/data-platform-workflows/compare/v16.2.2...v16.3.0) ##### What's Changed - compatible(integration_test_charm.yaml): Add support for microk8s on IS hosted runners by [@​carlcsaposs-canonical](https://togithub.com/carlcsaposs-canonical) in [https://github.com/canonical/data-platform-workflows/pull/203](https://togithub.com/canonical/data-platform-workflows/pull/203) **Full Changelog**: https://github.com/canonical/data-platform-workflows/compare/v16.2.2...v16.3.0 ### [`v16.2.2`](https://togithub.com/canonical/data-platform-workflows/releases/tag/v16.2.2) [Compare Source](https://togithub.com/canonical/data-platform-workflows/compare/v16.2.1...v16.2.2) ##### What's Changed - patch(build_charm.yaml): Add information about charmcraftcache to usage doc by [@​carlcsaposs-canonical](https://togithub.com/carlcsaposs-canonical) in [https://github.com/canonical/data-platform-workflows/pull/204](https://togithub.com/canonical/data-platform-workflows/pull/204) **Full Changelog**: https://github.com/canonical/data-platform-workflows/compare/v16.2.1...v16.2.2

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