`Test_handleInfoRequest` is flaky

[kruskall]

APM AWS Lambda extensiom version (apm-aws-lambda version):

Describe the bug

test job is failing

To Reproduce
Steps to reproduce the behavior:

1. Run CI jobs

Expected behavior

CI is green

Provide logs (if relevant):

Observed in a few PRs:

[2023-01-24T21:44:19.748Z] === RUN   Test_handleInfoRequest
[2023-01-24T21:44:19.748Z]     logger.go:130: 2023-01-24T21:44:19.726Z	INFO	Extension listening for apm data on 127.0.0.1:1234
[2023-01-24T21:44:19.748Z]     receiver_test.go:201: 
[2023-01-24T21:44:19.748Z]         	Error Trace:	receiver_test.go:201
[2023-01-24T21:44:19.748Z]         	Error:      	Received unexpected error:
[2023-01-24T21:44:19.748Z]         	            	Post "http://127.0.0.1:1234/intake/v2/events": EOF
[2023-01-24T21:44:19.748Z]         	Test:       	Test_handleInfoRequest
[2023-01-24T21:44:19.748Z]     logger.go:130: 2023-01-24T21:44:19.727Z	DEBUG	server closed
[2023-01-24T21:44:19.748Z] --- FAIL: Test_handleInfoRequest (0.00s)