Fix NLP flavored docker images by specifying torchtext version, update versions of dependencies, refactor ci

[trsvchn]

Fixes Falling docker builds on release And Addresses #1879

Description:

torchtext of version 0.10.1 forces to install torch=1.9.1. This breaks nlp flavored images, which a re based on torch=1.9.0

This PR:

1. Fixes builds by harcoding the right version of torchtext (<0.10.1)
2. Updates horovod version to 0.23.0
3. Updates deepspeed to 0.5.4
4. Refactors versions extraction for docker builds, see ci: up pytorch to 1.8.1 #1878 (comment)

Check list:

• New tests are added (if a new feature is added)
• New doc strings: description and/or example code are in RST format
• Documentation is updated (if required)

[vfdev-5]

Thanks @trsvchn !