Add spans to CRI runtime service and related client methods

This adds otel spans to CRI service mainly targeting mutating apis which includes:
* Sandbox apis - RunPodSandbox, StopPodSandbox, RemovePodSandbox
* Container apis - CreateContainer, StartContainer, StopContainer, RemoveContainer
* Attach, Exec and Exec Sync
* Containerd client methods: container.go, client.go, process.go and task.go

Signed-off-by: Swagat Bora <sbora@amazon.com>

pkg/tracing/tracing.go

@@ -36,6 +36,14 @@ type StartConfig struct {
 
 type SpanOpt func(config *StartConfig)
 
+// WithAttribute appends attributes to a new created span.
+func WithAttribute(k string, v interface{}) SpanOpt {
+	return func(config *StartConfig) {
+		config.spanOpts = append(config.spanOpts,
+			trace.WithAttributes(Attribute(k, v)))
+	}
+}
+
 // UpdateHTTPClient updates the http client with the necessary otel transport
 func UpdateHTTPClient(client *http.Client, name string) {
 	client.Transport = otelhttp.NewTransport(
@@ -80,8 +88,8 @@ func (s *Span) End() {
 }
 
 // AddEvent adds an event with provided name and options.
-func (s *Span) AddEvent(name string, options ...trace.EventOption) {
-	s.otelSpan.AddEvent(name, options...)
+func (s *Span) AddEvent(name string, attributes ...attribute.KeyValue) {
+	s.otelSpan.AddEvent(name, trace.WithAttributes(attributes...))
 }
 
 // SetStatus sets the status of the current span.