Update test lib's

[Philzen]

I just wanted to update the Jackson lib, but then i ended up checking the whole list ;)

After some fighting with (non-semver) breaking changes in avaje-jsonb and json-io i was able to execute both ./run ser and .run/deser successfully.

Some notable points:

• dsl-json had a new major release (v2.x). I followed the migration section in the project readme, looking at this no further modifications are necessary, but you never know... so i added this commit at the very end in case we want to drop it again
• same with apache johnzon. there does not seem to be much information available on any migration process… so just putting this here, to be dropped easily again in case execution fails with it
• json-io had a typo in the version no. in the README.md which was introduced via a manual revert here. Probably it was reverted b/c i found out the hard way there was a breaking change in the API and the migration instructions are barely existent. However, works now with the new API – if not, simply git revert 91d279b before merging (i may also simply rebase and drop the commit if desired)
• I had a little confusion about senthilganeshs/jsonp vs. https://github.com/tonivade/purejson. The former hasn't seen any activity in the last five years, while the latter seems pretty active, but is not yet included in the shootout – maybe a good one to add?

[Philzen]

After following the discussion in #104, i dropped the fastjson update 2cbcf08 in this PR now

[fabienrenaud]

Looks good. Thanks! Left a couple of trivial comments.

[fabienrenaud]

I had a little confusion about senthilganeshs/jsonp vs. https://github.com/tonivade/purejson. The former hasn't seen any activity in the last five years, while the latter seems pretty active, but is not yet included in the shootout – maybe a good one to add?

Indeed. I can't find the source for senthilganeshs/jsonp anymore... Let's remove it in a separate PR. If tonivade/purejson uses the same API, let's switch the dependency from senthilganeshs.purejson to tonivade.purejson.

Thank you for your contribution and help.