Update requests from 2.25.1 to 2.27.1

An update is motivated by the following error (example job with error):

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed.
       This behaviour is the source of the following dependency conflicts.

       test-tools 0.0.0 requires requests==2.27.1, but you have requests 2.25.1 which is incompatible.

request update removes the above error and passes all tests on CI: https://gitlab.syncad.com/hive/hive/-/pipelines/52273.