* Fix: handle max_request_size<=0
Signed-off-by: guacamole <gunjanwalecha@gmail.com>

* created test cases for listener
Signed-off-by: guacamole <gunjanwalecha@gmail.com>

* added test case for negative value of MaxRequestSize
Signed-off-by: guacamole <gunjanwalecha@gmail.com>
Co-authored-by: Hridoy Roy <roy@hashicorp.com>