Reduce the token generator test to 1s for the whole suite

Description

Reduces the number of tokens generated in the token generator test to speed up tests.

Changes

• The number of tokens is no longer inversely proportional to 1000000₁₆, but rather to 20000₁₆, an 128x "improvement" (we already knew pretty sure that the generator was outputting unique tokens)

Additions

None.

Test and Review

To be filled in by the reviewers

• All of the methods are commented to expectation

• The methods are tested to satisfaction

• There are no unnecessary files present in the MR

• The continuous integration has no problems with the MR

• The MR is filled in as requested (including labels, milestones, and reviewers)

• The documentation is up-to-date

• All nullable parameters are marked as such