Update earthly/earthly digest to e1120dd (#61)

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This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| earthly/earthly | digest | `8073987` -> `e1120dd` |

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.arg

@@ -1,3 +1,3 @@
 DOCKERHUB_USER=earthly
 IMAGE_NAME=dind
-EARTHLY_REPO_VERSION=807398730a099ca1f0cf20c04099245919cf800e
+EARTHLY_REPO_VERSION=e1120dd403b1564f93d907e7051f09577852489b