golangci-lint/CI: Bump versions and introduce new linters (#798)

* golangci-lint/CI: Bump versions

Fix remaining linter issues

* Specifically set AppVeyor version

* Fix the infamous typos 👀

* Add go env cmd to AppVeyor

* Add go version cmd to AppVeyor

* Specify AppVeyor image, adjust linters

* Update go get to go install due to deprecation

* Bump golangci-lint timeout time for AppVeyor

* Change NW contract to NQ

* Address nitters

* GetRandomPair -> Pair{}

* Address nits

* Address time nitterinos plus additional tweaks

* More time inception upgrades!

* Bending time and space

exchanges/bittrex/bittrex_wrapper.go

@@ -950,8 +950,8 @@ func (b *Bittrex) GetHistoricCandles(ctx context.Context, pair currency.Pair, a
 	year, month, day := start.Date()
 	curYear, curMonth, curDay := time.Now().Date()
 
-	getHistoric := false
-	getRecent := false
+	getHistoric := false // nolint:ifshort,nolintlint // false positive and triggers only on Windows
+	getRecent := false   // nolint:ifshort,nolintlint // false positive and triggers only on Windows
 
 	switch interval {
 	case kline.OneMin, kline.FiveMin: