ci: fix 2.7 behat tests

[vasilvestre]

Q	A
Branch?	2.7
Tickets	none
License	MIT

Reasons for changes :

Composer

Use the same composer dependencies changes in behat and phpunit

HAL

Don't rely on insertion #5709

JsonLD

Don't rely on insertion #5709

GraphQL

Add some missing operations

Need help

Mercure

The Mercure update sent is made with json+ld instead of simple json so it fails to match format.
features/graphql/subscription.feature:187

"{"@context":"\/contexts\/DummyMercure","@id":"\/dummy_mercures\/1","@type":"DummyMercure","id":1,"name":"Dummy Mercure #1 updated","description":"Description","relatedDummy":"\/related_dummies\/1"}"
"{"dummyMercure":{"id":1,"name":"Dummy Mercure #1 updated","relatedDummy":{"name":"RelatedDummy #1"}}}"

Subresource

features/main/subresource.feature:476
On PHP 8.*, value of offers and relatedProducts keys from DummyProduct are empty.

features/main/subresource.feature:401
On PHP 8.*, hydra:member is empty instead of containing a DummyOffer

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[vasilvestre]

I couldn't succeed :(

[vasilvestre]

The branch changed a lot since my fixes, I'm closing this