Run latest versions of test suites

[michielbdejong]

Depends on pdsinterop/php-solid-auth#18

[michielbdejong]

Tests are failing due to #54 - will add a SKIP_CONC env var to solid-crud-tests.

[michielbdejong]

Hm, that's odd, in github actions it's getting the cookie correctly but then still can't seem to use it successfully when running the solid-crud-tests. Re-running to see if this problem is intermittent, or related to some difference between my test server and the github actions execution environment.

[Potherca]

pdsinterop/php-solid-auth#18 has been merged and released as pdsinterop/solid-auth:v0.6.2

[Potherca]

I've rebased this MR on the recent changes on main (mostly bug fixes) to see if/what changes in the checks.

[Potherca]

Yeah, there definitely something going on with GitHub Action... Getting intermittent timeouts now as well... We might have to reconsider how the tests are currently run and/or split the actions across multiple jobs.

[Potherca]

Merging this in order to keep things moving. Subsequent fixes to get the build passing can be added in later MRs. (I want to get the v0.6 release out of the door, so I can start adding the Link Metadata feature).