Add support for custom instance types

[nikitassharma]

Custom instance types could previously only be set through setting vcpu/memory/disk through the configuration block. As we deprecate configuration, move setting vcpu, memory, and disk to the instance type field of wrangler. By nature, this enforces that custom instance types are mutually exclusive with the named instance types and will allow us to remove a lot of the logic that verifies this once configuration is removed.

Fixes CC-5692

---

• Tests
  • Tests included
  • Tests not necessary because:
• Public documentation
  • Cloudflare docs PR(s): [Containers] document custom instance types in configuration.mdx cloudflare-docs#23674
  • Documentation not necessary because:
• Wrangler V3 Backport
  • Wrangler PR:
  • Not necessary because: not in v3

[changeset-bot]

🦋 Changeset detected

Latest commit: 7b04192

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

This PR includes changesets to release 3 packages

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

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[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 nsharma/custom-instance-type might be a good starting point.

Notes:

• your PR branch should be named v3-backport-10051
• add the skip-v3-pr label to the current PR to stop this workflow from failing

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miniflare

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@cloudflare/pages-shared

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wrangler

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commit: 7b04192

[emily-shen]

and as i mentioned, this'll need changes to containers/config.ts and everything downstream of that :)

[emily-shen]

approved pending the commented changes, but don't want to block you on time zones :)