[CI] Use fromJson to dynamically define native-tests matrix

[zakkak]

Hello,

Today I learned that one can "dynamically" define a github action matrix using fromJson. This could replace #10763 with the following pros and cons.

Pros:

• Workflows from other repositories (e.g. Mandrel) can fetch the native-tests.json and get the correct matrix for the Quarkus version they want to test without having to change the local workflow.
• In maven profiles we still need to edit the workflow when a new "category" is added to the matrix, with fromJson this is no longer needed making much more flexible.

Cons

• The maven profiles (Creates maven profiles for integration tests #10763) allow for running the same groups of tests locally or on other CI systems (e.g. Jenkins).

Alternatives

1. There is nothing preventing us from combining the maven profiles with fromJson but it feels like an overkill. In this case the json file would define the groups and the corresponding timeout, while the maven profiles would define the tests belonging in each group.

2. Another approach (combining the two) would be to not use a static json file and create one on the fly by parsing integration-tests/pom.xml and figuring out the available groups of tests (IT-* maven profiles), this way we would need to have a single timeout for all groups though and we would need to move to using -Ddocker for the services.

WDYT?

[zakkak]

The Native-Tests Misc3 failure is interesting 👀

The same commit worked fine on my fork https://github.com/zakkak/quarkus/runs/1355280544

[zakkak]

@gsmet @gastaldi I know that this is not even close to being a priority and that it's kind of hard to review but if it is something we would eventually want I think it would better be merged before 1.10 (to avoid exposing the IT-* profiles and then reverting them), so please have at least a high-level look before 1.10.

Thanks

[gsmet]

I think it's an interesting idea if you can exploit it in the Mandrel build.

TBH I prefer this to the profile approach you used.

[zakkak]

Please let me know if there is any way I can format the json file (or something else) to ease the review process for you since this requires going through the tests one by one and ensuring everything is still there :)

[gsmet]

If you confirm this is your final PR, I'll do a thorough check that things are OK.

Just don't want to do it if you're in the process of changing things :).

[zakkak]

@gsmet I just did a second pass to make sure everything looks OK. No further changes are expected so you may go ahead and review it :)

[gsmet]

I checked the config file and also checked several builds and things looks good to me.