Update qemux/qemu-docker Docker tag to v4.28

[balena-renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
qemux/qemu-docker	final	minor	4.24 -> 4.28

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Release Notes

qemus/qemu-docker (qemux/qemu-docker)

### [`v4.28`](https://togithub.com/qemus/qemu-docker/releases/tag/v4.28) [Compare Source](https://togithub.com/qemus/qemu-docker/compare/v4.27...v4.28) #### What's Changed - feat: Check the amount of RAM available by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/482](https://togithub.com/qemus/qemu-docker/pull/482) **Full Changelog**: https://github.com/qemus/qemu-docker/compare/v4.27...v4.28 ### [`v4.27`](https://togithub.com/qemus/qemu-docker/releases/tag/v4.27) [Compare Source](https://togithub.com/qemus/qemu-docker/compare/v4.26...v4.27) #### What's Changed - feat: Improved networking by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/481](https://togithub.com/qemus/qemu-docker/pull/481) **Full Changelog**: https://github.com/qemus/qemu-docker/compare/v4.26...v4.27 ### [`v4.26`](https://togithub.com/qemus/qemu-docker/releases/tag/v4.26) [Compare Source](https://togithub.com/qemus/qemu-docker/compare/v4.25...v4.26) #### What's Changed - docs: Update issues templates by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/478](https://togithub.com/qemus/qemu-docker/pull/478) - feat: Disable S3 and S4 mode for Windows guests by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/479](https://togithub.com/qemus/qemu-docker/pull/479) **Full Changelog**: https://github.com/qemus/qemu-docker/compare/v4.25...v4.26 ### [`v4.25`](https://togithub.com/qemus/qemu-docker/releases/tag/v4.25) [Compare Source](https://togithub.com/qemus/qemu-docker/compare/v4.24...v4.25) #### What's Changed - docs: Local image boot instructions by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/471](https://togithub.com/qemus/qemu-docker/pull/471) - feat: Print system info by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/472](https://togithub.com/qemus/qemu-docker/pull/472) - build: Remove armv7 support by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/474](https://togithub.com/qemus/qemu-docker/pull/474) - feat: Support ecryptfs filesystem by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/475](https://togithub.com/qemus/qemu-docker/pull/475) - feat: Display available RAM by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/476](https://togithub.com/qemus/qemu-docker/pull/476) - feat: Display kernel version by [@​kroese](https://togithub.com/kroese) in [https://github.com/qemus/qemu-docker/pull/477](https://togithub.com/qemus/qemu-docker/pull/477) **Full Changelog**: https://github.com/qemus/qemu-docker/compare/v4.24...v4.25

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