api/queue: Add support for a global CloudAMQP rabbit setup

[victorges]

What does this pull request do? Explain your changes. (required)

This adds support for a global RabbitMQ setup by allowing to split tasks events into different regions.

Notice that webhooks are still global, but I think that's OK. Only recordings might get processed in a
different region from the original stream.

Specific updates (required)

• Receive exchange name from CLI args
• Use it to create the exchange and queues

-

• How did you test each of these updates (required)
  Deployed to staging and checked CloudAMQP.

Does this pull request close any open issues?
Fixes all my rabbit nightmares.

Checklist:

• I have read the CONTRIBUTING document.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.

[vercel]

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Name	Status	Preview	Updated
livepeer-studio	✅ Ready (Inspect)	Visit Preview	Nov 13, 2022 at 3:55PM (UTC)

[codecov]

Codecov Report

Merging #1457 (f094023) into master (afb5d9c) will decrease coverage by 0.00399%.
The diff coverage is 69.23077%.

@@                 Coverage Diff                 @@
##              master       #1457         +/-   ##
===================================================
- Coverage   53.00000%   52.99601%   -0.00399%     
===================================================
  Files             68          68                 
  Lines           4500        4506          +6     
  Branches         846         850          +4     
===================================================
+ Hits            2385        2388          +3     
- Misses          1809        1812          +3     
  Partials         306         306                 

Impacted Files	Coverage Δ
packages/api/src/app-router.ts	51.28205% <ø> (ø)
packages/api/src/controllers/asset.ts	59.34426% <0.00000%> (ø)
packages/api/src/parse-cli.ts	31.70732% <ø> (ø)
packages/api/src/store/queue.ts	70.76923% <75.00000%> (-2.11213%)	⬇️

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Impacted Files	Coverage Δ
packages/api/src/app-router.ts	51.28205% <ø> (ø)
packages/api/src/controllers/asset.ts	59.34426% <0.00000%> (ø)
packages/api/src/parse-cli.ts	31.70732% <ø> (ø)
packages/api/src/store/queue.ts	70.76923% <75.00000%> (-2.11213%)	⬇️

[victorges]

self-review LGTM cause I can't wait to deploy this