[Snyk] Security upgrade caddy from 2.7.5-alpine to 2.8.0-alpine

[jstabenow]

This PR was automatically created by Snyk using the credentials of a real user.


Snyk has created this PR to fix 3 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• Dockerfile

We recommend upgrading to caddy:2.8.0-alpine, as this image has only 3 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Use After Free SNYK-ALPINE318-BUSYBOX-7249236	586
	Use After Free SNYK-ALPINE318-BUSYBOX-7249236	586
	Use After Free SNYK-ALPINE318-BUSYBOX-7249265	586
	Use After Free SNYK-ALPINE318-BUSYBOX-7249265	586
	Use After Free SNYK-ALPINE318-BUSYBOX-7249419	586

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[!IMPORTANT]

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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