⬆️ Update ghcr.io/hassio-addons/base Docker tag to v21

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
ghcr.io/hassio-addons/base (source)		major	20.1.1 → 21.0.1
ghcr.io/hassio-addons/base (source)	final	major	20.1.1 → 21.0.1

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Release Notes

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

v21.0.1

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What’s changed

⬆️ Dependency updates

• ⬆️ Update alpine_3_24/curl to v8.21.0-r0 @​renovate[bot] (#​396)
• ⬆️ Update alpine_3_24/tzdata to v2026c-r0 @​renovate[bot] (#​397)
• ⬆️ Update Alpine base image to v3.24.1 @​renovate[bot] (#​393)
• ⬆️ Update just-containers/s6-overlay to v3.2.3.2 @​renovate[bot] (#​395)
• ⬆️ Update home-assistant/tempio to v2026.07.0 @​renovate[bot] (#​398)

v21.0.0

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What’s changed

🐛 Bug fixes

• In the banner, use bashio::app functions instead of the deprecated bashio::addon functions @​lmagyar (#​389)

🧰 Maintenance

• 👷 Update workflows to v3.0.0, restore Release Drafter & tidy README @​frenck (#​392)

⬆️ Dependency updates

• ⬆️ Update hassio-addons/bashio to v0.18.1 @​renovate[bot] (#​390)
• ⬆️ Update Alpine base image to v3.24.0 @​renovate[bot] (#​391)

v20.2.0

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What’s changed

⬆️ Dependency updates

• ⬆️ Update home-assistant/tempio to v2026 @​renovate[bot] (#​386)
• ⬆️ Update just-containers/s6-overlay to v3.2.3.0 @​renovate[bot] (#​385)
• ⬆️ Update alpine_3_23/curl to v8.19.0-r0 @​renovate[bot] (#​387)
• ⬆️ Update hassio-addons/bashio to v0.18.0 @​renovate[bot] (#​388)

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