* golangci-lint: Enable usetesting and unused linters
* tests: Improve assertions in various test cases for clarity and accuracy
* tests: Enhance error assertions in TestExecuteStrategyFromFile for improved clarity
* tests: Update assertions for improved clarity and accuracy
* tests: Replace assert with require for task count checks
* config/versions/v7: Replace context.Background() with t.Context()
* Bithumb: Centralise and consoliate testPair, relax UpdateTickers check
with some glorious Doom Eternal music
* Bithumb: Use UpdatePairsOnce and update remaining pair string
* Bithumb: Add UpdatePairsOnce to TestUpdateTickers
* Exchanges: Remove Pair upgrade handling
Now redundant behind #1401. These paths should never be met.
Several legacy coin upgrade paths being deprecated as well: ZUSD and CNY
Expecting any users with bad config from 3+ years ago would have to
reset anyway.
Also: At the time the intention of this was to upgrade the config
format.
However now, instead, it'd mostly serve to reset enabled pairs if
there's a config mistake, which doesn't feel right.
* Kraken: Fix typo in Kraken type struct
* Exchanges: Abstract exchange Start() and Run()
* Exchanges: Add test for abstracted Start
* Exchanges: Move Start to Bootstrap
* Simplify waitgroup usage
* Add call to exchange.Bootstrap to allow overide or supplementation
* Exchanges: Concurrent common bootstap actions
* Gateio: Remove incorrect Run in test
* GateIO: Fix pair dependencies in tests
This ensures that the pairs are initialised no more than needed and
kind-of just-in-time.
Better pattern might be to use a function to get these pairs when we
need them.
* Exchanges: Complete UpdatePairs before ExecLims
If we're going to update pairs, it needs to complete before we check for
limits to avoid errors on old pairs
* Exchanges: Remove Start and Run from tmpl
Since they're replaced by bootstrap now and shouldn't need customisation
normally
* Alphapoint: Move Start to Bootstrap
* GateIO: Fix linter shadow var
