RFS: python-deeptools/3.3.2+ds-3 - Add autopkgtest

[Sao I Kuan <saoikuan@gmail.com>]

Hi, Team~

I added autopkgtest shell script for python-deeptools[1]. But because
the master branch was protected, I couldn't push to team's repository
directly. So I made an MR [2]. Please review and consider to upload.

[1] https://salsa.debian.org/med-team/python-deeptools
[2] https://salsa.debian.org/med-team/python-deeptools/-/merge_requests/1

Now I'm going to try adding the testing script for binary package: seqsero[3].

[3] https://salsa.debian.org/med-team/seqsero

Thank you! \o/

Sincerely,

Sao I Kuan
saoikuan@gmail.com