Set single thread of zstd and blosc

[dachengx]

What is the problem / what does the code in this PR do

Only XENONnT/outsource#213 can not limit the usage of CPU because zstd and blosc by default will use as many as CPU on the machine.

This PR replaces zstd with zstandard and sets a one-thread constraint of zstd and blosc.

The reason for replacing zstd with zstandard is listed here: https://python-zstandard.readthedocs.io/en/latest/projectinfo.html#comparison-to-other-python-bindings and https://github.com/indygreg/python-zstandard/blob/e27f2f49f187f5f698e0a6004bee2aed80fe39e3/docs/projectinfo.rst?plain=1#L30.

I hope this will not make the previously compressed data unable to be decompressed.

Can you briefly describe how it works?

Can you give a minimal working example (or illustrate with a figure)?

Please include the following if applicable:

• Update the docstring(s)
• Update the documentation
• Tests to check the (new) code is working as desired.
• Does it solve one of the open issues on github?

Please make sure that all automated tests have passed before asking for a review (you can save the PR as a draft otherwise).

[github-actions]

coverage: 89.918% (-0.3%) from 90.264%
when pulling 5b93e3c on _single_thread_compressor
into a528e4b on master.