CDRIVER-4781 Avoid intermediate uint32_t for socketTimeoutMS (#1475)

* Fix format specifier in timeout range validation error messages

* CDRIVER-4781 Avoid overflow of -1 sockettimeout in cast to intermediate uint32_t

* Add regression test for negative sockettimeoutms validation

* Update documentation with warnings for non-positive timeout values

* Update timeout variables for type consistency

* Add regression test for unspecified default timeout in writev functions