refactor: Cleanup thread ctor calls

Summary:

refactor: Make TraceThread a non-template free function

Also it is moved into its own module.

refactor: Use appropriate thread constructor

refactor: Replace std::bind with lambdas

Lambdas are shorter and more readable.
Changes are limited to std::thread ctor calls only.

This is a backport of core#19064

Notes:

• The mapport source file does not exist because we are missing core#18077
• D11828 added an argument for CConnman::ThreadOpenConnections

Test Plan: ninja all check-all

Reviewers: #bitcoin_abc, Fabien

Reviewed By: #bitcoin_abc, Fabien

Subscribers: Fabien

Differential Revision: https://reviews.bitcoinabc.org/D12068