Do not update container apps image if the image is unchanged

[IRCody]

Previously we would build the image and retag even if the only change was the build-related metadata. This changes that to detect if the build has resulted in a new image, and if it has not remove the added tag and ensures the applications image is not updated.

---

• Tests
  • TODO (before merge)
  • Tests included
  • Tests not necessary because:
• Wrangler / Vite E2E Tests CI Job required? (Use "e2e" label or ask maintainer to run separately)
  • I don't know
  • Required
  • Not required because:
• Public documentation
  • TODO (before merge)
  • Cloudflare docs PR(s):
  • Documentation not necessary because: Fixing a ux annoyance more than a real behavior change.
• Wrangler V3 Backport
  • TODO (before merge)
  • Wrangler PR:
  • Not necessary because: Feature doesn't exist in v3.

[changeset-bot]

🦋 Changeset detected

Latest commit: e27f8df

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 2 packages

Name	Type
wrangler	Patch
@cloudflare/vitest-pool-workers	Patch

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[pkg-pr-new]

create-cloudflare

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commit: e27f8df

[github-actions]

Failed to automatically backport this PR's changes to Wrangler v3. Please manually create a PR targeting the v3-maintenance branch with your changes. Thank you for helping us keep Wrangler v3 supported!

Depending on your changes, running git rebase --onto v3-maintenance main cdr/no-push-if-identical-build might be a good starting point.

Notes:

• your PR branch should be named v3-backport-9565
• add the skip-v3-pr label to the current PR to stop this workflow from failing