Improve request-response matching and fix some interface conversion errors (#778)

* Add a PCAP based testbed

* Fix typos

* Download PCAPs from the Google Cloud bucket

* Add a Python script to automate the PCAP testbed

* Dump the test suite into a file named `suite.json`

* Serialize entries separately

* Dissect individual TCP streams one by one through separate PCAP files

* Improve the reliability a little bit

* Ditch the individual TCP streams idea

* Fix some issues in Kafka

* Print the total number of packets and TCP streams

* Fix an interface conversion error in AMQP

* Print the total number of returning items from the dissectors

* Print the total number of returning items from the dissectors really

* Fix a possible race condition

* Do atomic increments just to be sure

* Print the total number of Redis `Dissect` calls

* Improve the request-response matching in Redis by including the TCP stream ID

* Update the request-response pair matching key format in HTTP and Kafka

* Rearrange the test suite

* Add more queries to the test suite

* Remove the debug prints

* Add the assertions

* Close the WebSocket connection faster

* Make `MIZU_TEST` enviroment variable a shared constant

* Add `test-lint` rule

* Fix several issues in Kafka

* Update the test suite

* Add more queries

* Fix the `test-lint` rule

* Exit only after PCAP EOF

* Add more queries

* Update `suite.json`

* Make the tests more stable

* Revert the bad changes

* Run `go mod tidy` on `tap/`

tap/extensions/amqp/helpers.go

@@ -362,7 +362,7 @@ func representBasicDeliver(event map[string]interface{}) []interface{} {
 		for name, value := range properties["headers"].(map[string]interface{}) {
 			headers = append(headers, api.TableData{
 				Name:     name,
-				Value:    value.(string),
+				Value:    value,
 				Selector: fmt.Sprintf(`request.properties.headers["%s"]`, name),
 			})
 		}