[Wrangler] Add Workflows sendEvent wrangler command

[pombosilva]

Fixes WOR-1057.

This adds a new command to wrangler wrangler workflows instances send-event <name> <id> with options --type and --payload to allow users to just call this command to send an event to a deployed running workflow instance rather than having to implement it themselves or having to use the API.

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• Tests
  • [x] Tests included/updated
  • [ ] Tests not necessary because:
• Public documentation
  • [ ] Cloudflare docs PR(s):
  • [x] Documentation not necessary because: it will be automatic
• Wrangler V3 Backport
  • [ ] Wrangler PR:
  • [x] Not necessary because: Workflows were not GA in v3

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[changeset-bot[bot]]

🦋 Changeset detected

Latest commit: d18edef6d1a5d1d86627a0677c7dc052b1eeea0e

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

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[github-actions[bot]]

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 osilva/add-send-event-wrangler-command might be a good starting point.

Notes:

• your PR branch should be named v3-backport-11590
• add the skip-v3-pr label to the current PR to stop this workflow from failing

[Caio-Nogueira]

LGTM from the workflows team

[pombosilva]

Could you please get an approval from within your team first ? (That's the usual process from contributions originating from outside the ANT team). Thanks

I have an approval from my team. Caio left a comment above