v0.16.2

Fixes:

• Fix issue with zeroshot topic modeling missing outlier #1957
• Bump github actions versions by @afuetterer in #1941
• Drop support for python 3.7 by @afuetterer in #1949
• Add testing python 3.10+ in Github actions by @afuetterer in #1968
• Speed up fitting CountVectorizer by @dannywhuang in #1938
• Fix transform when using cuML HDBSCAN by @beckernick in #1960
• Fix wrong link in algorithm documentation by @naeyn in #1970