[Vendor] Update go-redis to v8.5.0 (#13749)

* Update go-redis to v8.4.0

* github.com/go-redis/redis/v8  v8.4.0 -> v8.5.0

* Apply suggestions from code review

Co-authored-by: zeripath <art27@cantab.net>

* TODO

* Use the Queue termination channel as the default context for pushes

Signed-off-by: Andrew Thornton <art27@cantab.net>

* missed one

Signed-off-by: Andrew Thornton <art27@cantab.net>

Co-authored-by: zeripath <art27@cantab.net>

vendor/github.com/go-redis/redis/v8/internal/log.go

@@ -0,0 +1,24 @@
+package internal
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+)
+
+type Logging interface {
+	Printf(ctx context.Context, format string, v ...interface{})
+}
+
+type logger struct {
+	log *log.Logger
+}
+
+func (l *logger) Printf(ctx context.Context, format string, v ...interface{}) {
+	_ = l.log.Output(2, fmt.Sprintf(format, v...))
+}
+
+var Logger Logging = &logger{
+	log: log.New(os.Stderr, "redis: ", log.LstdFlags|log.Lshortfile),
+}