allow service accounts and temp credentials site-level healing (#14829)

This PR introduces support for site level

- service account healing
- temporary credentials healing

cmd/iam.go

@@ -939,6 +939,20 @@ func (sys *IAMSys) ListServiceAccounts(ctx context.Context, accessKey string) ([
 	}
 }
 
+// ListTempAccounts - lists all services accounts associated to a specific user
+func (sys *IAMSys) ListTempAccounts(ctx context.Context, accessKey string) ([]auth.Credentials, error) {
+	if !sys.Initialized() {
+		return nil, errServerNotInitialized
+	}
+
+	select {
+	case <-sys.configLoaded:
+		return sys.store.ListTempAccounts(ctx, accessKey)
+	case <-ctx.Done():
+		return nil, ctx.Err()
+	}
+}
+
 // GetServiceAccount - wrapper method to get information about a service account
 func (sys *IAMSys) GetServiceAccount(ctx context.Context, accessKey string) (auth.Credentials, *iampolicy.Policy, error) {
 	sa, embeddedPolicy, err := sys.getServiceAccount(ctx, accessKey)