update prometheus dependencies (#5520)

Signed-off-by: junot <junotxiang@kubesphere.io>

vendor/github.com/prometheus/common/sigv4/sigv4_config.go

@@ -0,0 +1,47 @@
+// Copyright 2021 The Prometheus Authors
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package sigv4
+
+import (
+	"fmt"
+
+	"github.com/prometheus/common/config"
+)
+
+// SigV4Config is the configuration for signing remote write requests with
+// AWS's SigV4 verification process. Empty values will be retrieved using the
+// AWS default credentials chain.
+type SigV4Config struct {
+	Region    string        `yaml:"region,omitempty"`
+	AccessKey string        `yaml:"access_key,omitempty"`
+	SecretKey config.Secret `yaml:"secret_key,omitempty"`
+	Profile   string        `yaml:"profile,omitempty"`
+	RoleARN   string        `yaml:"role_arn,omitempty"`
+}
+
+func (c *SigV4Config) Validate() error {
+	if (c.AccessKey == "") != (c.SecretKey == "") {
+		return fmt.Errorf("must provide a AWS SigV4 Access key and Secret Key if credentials are specified in the SigV4 config")
+	}
+	return nil
+}
+
+func (c *SigV4Config) UnmarshalYAML(unmarshal func(interface{}) error) error {
+	type plain SigV4Config
+	*c = SigV4Config{}
+	if err := unmarshal((*plain)(c)); err != nil {
+		return err
+	}
+	return c.Validate()
+}