build: release Docker image to GHCR via Craft

[aldy505]

This is an ongoing effort to simplify the release process to not rely on the hacky GitHub Actions script that copies the Docker image after a release was created.

Part of getsentry/self-hosted#4123

REF SELF-78

#skip-changelog

[sentry]

Bug: The .craft.yml configuration waits for a GitHub status check "Build Docker Image (relay)", but the workflow providing it is being removed, causing a release deadlock.
_{Severity: CRITICAL | Confidence: High}

🔍 Detailed Analysis

The .craft.yml file is configured with a statusProvider that waits for a GitHub status check named "Build Docker Image (relay)". However, the pull request removes the .github/workflows/release-ghcr-version-tag.yml workflow, which was the likely source for this status check. No other workflow in the repository is configured to produce a check with this specific name. As a result, the Craft release process will hang indefinitely or time out while waiting for a status check that will never be created, effectively blocking all releases.

💡 Suggested Fix

Update the statusProvider configuration in .craft.yml to wait for a status check that is produced by an existing workflow, or modify an existing workflow to produce the required "Build Docker Image (relay)" status check.

🤖 Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent.
Verify if this is a real issue. If it is, propose a fix; if not, explain why it's not
valid.

Location: .craft.yml#L5-L9

Potential issue: The `.craft.yml` file is configured with a `statusProvider` that waits
for a GitHub status check named `"Build Docker Image (relay)"`. However, the pull
request removes the `.github/workflows/release-ghcr-version-tag.yml` workflow, which was
the likely source for this status check. No other workflow in the repository is
configured to produce a check with this specific name. As a result, the Craft release
process will hang indefinitely or time out while waiting for a status check that will
never be created, effectively blocking all releases.

_{Did we get this right? 👍 / 👎 to inform future reviews.
Reference ID: 7908621}