CI/TST: Skip external s3 bucket test that hangs on min build
Looks like one of the processes got stuck on `test_s3_parser_consistency`

```
2022-01-27T23:11:31.0333115Z [gw1] PASSED pandas/tests/io/xml/test_xml.py::test_unsuported_compression[etree] 
2022-01-27T23:11:35.6861543Z pandas/tests/io/xml/test_xml.py::test_s3_parser_consistency 
2022-01-27T23:11:35.6944349Z [gw0] PASSED pandas/tests/io/sas/test_sas7bdat.py::TestSAS7BDAT::test_iterator_loop 
```

In https://github.com/pandas-dev/pandas/pull/45665/commits/1fd4e923accf92bed8bedd4dab274f2e3d36a592, I don't see that test ever complete in the logs.
 @jbrockmendel min build is green here. Wdyt? All green on the min build. Going to merge.