⬆️ Update Add-on base image to v15.0.3

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
ghcr.io/hassio-addons/base/aarch64 (source)	patch	15.0.2 -> 15.0.3
ghcr.io/hassio-addons/base/amd64 (source)	patch	15.0.2 -> 15.0.3
ghcr.io/hassio-addons/base/armhf (source)	patch	15.0.2 -> 15.0.3
ghcr.io/hassio-addons/base/armv7 (source)	patch	15.0.2 -> 15.0.3
ghcr.io/hassio-addons/base/i386 (source)	patch	15.0.2 -> 15.0.3

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Release Notes

hassio-addons/addon-base (ghcr.io/hassio-addons/base/aarch64)

### [`v15.0.3`](https://togithub.com/hassio-addons/addon-base/releases/tag/v15.0.3) [Compare Source](https://togithub.com/hassio-addons/addon-base/compare/v15.0.2...v15.0.3) #### What’s changed #### ⬆️ Dependency updates - ⬆️ Update alpine\_3\_19/tzdata to v2023d-r0 [@​renovate](https://togithub.com/renovate) ([#​276](https://togithub.com/hassio-addons/addon-base/pull/276))

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