chore(deps): update docker.io/earthly/earthly docker tag to v0.8.2

This MR contains the following updates:

Package	Type	Update	Change
docker.io/earthly/earthly	image	patch	v0.8.1 -> v0.8.2

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images/.utils/gitlab-earthly.yaml

 .earthly:
-  image: docker.io/earthly/earthly:v0.8.1
+  image: docker.io/earthly/earthly:v0.8.2
   variables:
     DOCKER_HOST: tcp://docker:2375
     FORCE_COLOR: 1