Update module github.com/prometheus/client_golang to v1.19.1

vendor/google.golang.org/protobuf/internal/impl/pointer_reflect.go

@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build purego || appengine
 // +build purego appengine
 
 package impl
@@ -158,6 +159,42 @@ func (p pointer) SetPointer(v pointer) {
 	p.v.Elem().Set(v.v)
 }
 
+func growSlice(p pointer, addCap int) {
+	// TODO: Once we only support Go 1.20 and newer, use reflect.Grow.
+	in := p.v.Elem()
+	out := reflect.MakeSlice(in.Type(), in.Len(), in.Len()+addCap)
+	reflect.Copy(out, in)
+	p.v.Elem().Set(out)
+}
+
+func (p pointer) growBoolSlice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growInt32Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growUint32Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growInt64Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growUint64Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growFloat64Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
+func (p pointer) growFloat32Slice(addCap int) {
+	growSlice(p, addCap)
+}
+
 func (Export) MessageStateOf(p Pointer) *messageState     { panic("not supported") }
 func (ms *messageState) pointer() pointer                 { panic("not supported") }
 func (ms *messageState) messageInfo() *MessageInfo        { panic("not supported") }