s3 cache client-side support

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/aws/aws-sdk-go-v2/aws/retry/errors.go

@@ -0,0 +1,20 @@
+package retry
+
+import "fmt"
+
+// MaxAttemptsError provides the error when the maximum number of attempts have
+// been exceeded.
+type MaxAttemptsError struct {
+	Attempt int
+	Err     error
+}
+
+func (e *MaxAttemptsError) Error() string {
+	return fmt.Sprintf("exceeded maximum number of attempts, %d, %v", e.Attempt, e.Err)
+}
+
+// Unwrap returns the nested error causing the max attempts error. Provides the
+// implementation for errors.Is and errors.As to unwrap nested errors.
+func (e *MaxAttemptsError) Unwrap() error {
+	return e.Err
+}