feature symfony#53150 [Contracts] Allow psr/container 1.1 again (derrabus)

This PR was merged into the 6.4 branch.

Discussion
----------

[Contracts] Allow psr/container 1.1 again

| Q             | A
| ------------- | ---
| Branch?       | 6.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        | N/A
| License       | MIT

The only difference between psr/container 1.1 and 2.0 is one additional return type on the `ContainerInterface::has()` method, see php-fig/container@1.1.2...2.0.2

This means that if a package is compatible with 2.0 already (== all implementations already have that return type), it remains compatible with 1.1. However, in symfony#42088 we changed the composer.json of our service-contracts package and replaced `^1.1` with `^2.0`, dropping support for 1.1 although there was no need to do so.

I'm migrating a larger application to Symfony 7 at the moment which also consumes various Laminas packages. Due to Laminas still being stuck on psr/container 1.1, I cannot upgrade to service-contracts 3 which in turn blocks my Symfony 7 upgrade.

It would smoothen the upgrade path a lot for me, if we released a service-contracts 3.x that allows the installation of psr/container 1.1 again.

Commits
-------

80d34d0 Allow psr/container 1.1 again

Author: derrabus

src/Symfony/Contracts/Service/composer.json

@@ -17,7 +17,7 @@
     ],
     "require": {
         "php": ">=8.1",
-        "psr/container": "^2.0"
+        "psr/container": "^1.1|^2.0"
     },
     "conflict": {
         "ext-psr": "<1.1|>=2"