Convert AMQP 1.0 props and app props to AMQP 0.9.1 props and headers (backport #10037)

[mergify]

Hi,

As requested in #10022 this is a backport to 3.12.x.

The configuration option was removed and now all the properties are always converted to headers or other appropriate properties.
The priority was moved to the Header section according to AMQP 1.0 (section 3.2.1)

• Timestamps are milliseconds in AMQP 1.0, but in AMQP 0.9.1 it is seconds. Fixed by multiplying the timestamp by 1 000.
• Shovel crashed if user_id was set in the message because the encoding was as utf8 while it should be a byte array.
• Negative integers were encoded as integers - therefore leading to incorrect positive values.
• Float values were not supported by the client.
• Fixed priority header encoding in AMQP 1.0. It was set as uint but it should be ubyte.
• Priority of the message is now in the Headers instead of Application Properties. This is potentially a breaking change.

Fixes: #7508

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• Breaking change (fix or feature that would cause an observable behavior change in existing systems)
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• Cosmetic change (whitespace, formatting, etc)
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• I have added tests that prove my fix is effective or that my feature works
• All tests pass locally with my changes
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---

This is an automatic backport of pull request #10037 done by [Mergify](https://mergify.com).

[mergify]

Cherry-pick of 8e954ff has failed:

On branch mergify/bp/main/pr-10037
Your branch is up to date with 'origin/main'.

You are currently cherry-picking commit 8e954ff366.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --skip" to skip this patch)
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:
	modified:   deps/rabbitmq_shovel/test/amqp10_dynamic_SUITE.erl

Unmerged paths:
  (use "git add <file>..." to mark resolution)
	both modified:   deps/amqp10_client/src/amqp10_msg.erl
	both modified:   deps/rabbitmq_shovel/src/rabbit_amqp10_shovel.erl

To fix up this pull request, you can check it out locally. See documentation: https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/reviewing-changes-in-pull-requests/checking-out-pull-requests-locally

[ansd]

Build is failing.