rebase: Bump github.com/hashicorp/vault from 1.4.2 to 1.9.9

Bumps [github.com/hashicorp/vault](https://github.com/hashicorp/vault) from 1.4.2 to 1.9.9.
- [Release notes](https://github.com/hashicorp/vault/releases)
- [Changelog](https://github.com/hashicorp/vault/blob/main/CHANGELOG.md)
- [Commits](https://github.com/hashicorp/vault/compare/v1.4.2...v1.9.9)

---
updated-dependencies:
- dependency-name: github.com/hashicorp/vault
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/github.com/cenkalti/backoff/v3/retry.go

@@ -21,16 +21,31 @@ type Notify func(error, time.Duration)
 //
 // Retry sleeps the goroutine for the duration returned by BackOff after a
 // failed operation returns.
-func Retry(o Operation, b BackOff) error { return RetryNotify(o, b, nil) }
+func Retry(o Operation, b BackOff) error {
+	return RetryNotify(o, b, nil)
+}
 
 // RetryNotify calls notify function with the error and wait duration
 // for each failed attempt before sleep.
 func RetryNotify(operation Operation, b BackOff, notify Notify) error {
+	return RetryNotifyWithTimer(operation, b, notify, nil)
+}
+
+// RetryNotifyWithTimer calls notify function with the error and wait duration using the given Timer
+// for each failed attempt before sleep.
+// A default timer that uses system timer is used when nil is passed.
+func RetryNotifyWithTimer(operation Operation, b BackOff, notify Notify, t Timer) error {
 	var err error
 	var next time.Duration
-	var t *time.Timer
+	if t == nil {
+		t = &defaultTimer{}
+	}
 
-	cb := ensureContext(b)
+	defer func() {
+		t.Stop()
+	}()
+
+	ctx := getContext(b)
 
 	b.Reset()
 	for {
@@ -42,7 +57,7 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
 			return permanent.Err
 		}
 
-		if next = cb.NextBackOff(); next == Stop {
+		if next = b.NextBackOff(); next == Stop {
 			return err
 		}
 
@@ -50,17 +65,12 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
 			notify(err, next)
 		}
 
-		if t == nil {
-			t = time.NewTimer(next)
-			defer t.Stop()
-		} else {
-			t.Reset(next)
-		}
+		t.Start(next)
 
 		select {
-		case <-cb.Context().Done():
-			return err
-		case <-t.C:
+		case <-ctx.Done():
+			return ctx.Err()
+		case <-t.C():
 		}
 	}
 }
@@ -74,6 +84,10 @@ func (e *PermanentError) Error() string {
 	return e.Err.Error()
 }
 
+func (e *PermanentError) Unwrap() error {
+	return e.Err
+}
+
 // Permanent wraps the given err in a *PermanentError.
 func Permanent(err error) *PermanentError {
 	return &PermanentError{