Update docs-dind-images (#38)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| earthly/dind | patch | `ubuntu-20.04-docker-26.0.0-1` ->
`ubuntu-20.04-docker-26.0.2-1` |
| earthly/dind | patch | `alpine-3.19-docker-25.0.3-r2` ->
`alpine-3.19-docker-25.0.5-r0` |

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docs/dockerhub.md

@@ -10,8 +10,8 @@ This image supports 3 Linux distributions:
 * ubuntu:23.04
 
 For which the current latest tags (respectively) are:
-* `alpine-3.19-docker-25.0.3-r2`
-* `ubuntu-20.04-docker-26.0.0-1`
+* `alpine-3.19-docker-25.0.5-r0`
+* `ubuntu-20.04-docker-26.0.2-1`
 * `ubuntu-23.04-docker-25.0.1-1`
 
 For other available tags, please check out https://hub.docker.com/r/earthly/dind/tags