[FEAT] Don't log context cancelled SQL errors

- I found this while doing some unrelated testing in Forgejo. It wasn't
my intention to log failed SQL queries if they were cancelled (which can
happen quite frequently for larger instances) as in those cases it's not
interesting to know which SQL query was run. My intentation was only to
log an SQL query if there was an error reported by the database.
- Ref #2140

models/db/engine.go

@@ -7,6 +7,7 @@ package db
 import (
 	"context"
 	"database/sql"
+	"errors"
 	"fmt"
 	"io"
 	"reflect"
@@ -342,7 +343,7 @@ func (ErrorQueryHook) BeforeProcess(c *contexts.ContextHook) (context.Context, e
 }
 
 func (h *ErrorQueryHook) AfterProcess(c *contexts.ContextHook) error {
-	if c.Err != nil {
+	if c.Err != nil && !errors.Is(c.Err, context.Canceled) {
 		h.Logger.Log(8, log.ERROR, "[Error SQL Query] %s %v - %v", c.SQL, c.Args, c.Err)
 	}
 	return nil