GHA: Add additional checks for common issues (#1922)

* GHA, tests: Add additional checks for common issues

These checks include:
- Ensuring that all testify funcs use their formatted variants (e.g., `assert.Equalf(t, expected, actual)` instead of `assert.Equal(t, expected, actual)`).
- Replacing `%s` with %q
- Enforcing consistent usage of should/must wording for testify assert/require messages

* Add support for checking backticked string format specifiers and fix issues

* tests: Fix error comparisons

* tests: Replace errors.Is(err, nil) usage with testify and automate check

* refactor: Rename ExtractPort to ExtractPortOrDefault

* tests: Replace assert with require for error handling in multiple test files

* tests: Replace assert with require for error handling and improve assertions in data tests

* tests: Fix typo in assertion message for StreamVol test

* OKX: Fix GetOpenInterestAndVolumeStrike test with instrument selection and improved assertions

* OKX: Revert intentional error check

* Improve error message for expiry time check in GetOpenInterestAndVolumeStrike test

backtester/plugins/strategies/loader_test.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
 	"github.com/thrasher-corp/gocryptotrader/backtester/data"
 	"github.com/thrasher-corp/gocryptotrader/backtester/eventhandlers/portfolio"
 	"github.com/thrasher-corp/gocryptotrader/backtester/eventhandlers/strategies"
@@ -26,9 +27,7 @@ func TestAddStrategies(t *testing.T) {
 	}
 
 	err = addStrategies([]strategies.Handler{&CustomStrategy{}})
-	if !errors.Is(err, nil) {
-		t.Error(err)
-	}
+	assert.NoError(t, err)
 }
 
 type CustomStrategy struct {