feature #1631 [MCP Bundle] Implement PSR-16 adapter session storage (EdouardCourty)

This PR was merged into the main branch.

Discussion
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[MCP Bundle] Implement PSR-16 adapter session storage

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| Docs?         | yes
| Issues        | Fix https://github.com/symfony/ai/issues/1612
| License       | MIT

This PR brings compatibility with the underlying SDK's PSR-16 storage capacities for HTTP sessions storage.
New configurations options are made available :
- `cache` value for `mcp.http.session.store` (in addition to the existing `filesystem` and `memory` values
- `cache_pool` option for providing a custom cache pool to be used for storage (if none provided, defaulting to the built-in adapter)

Commits
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abe0d7d1 feat(sessions): implement psr-16 adapter session storage

composer.json

@@ -31,7 +31,7 @@
     ],
     "require": {
         "php": ">=8.2",
-        "mcp/sdk": "^0.3",
+        "mcp/sdk": "^0.4",
         "psr/log": "^2.0|^3.0",
         "symfony/config": "^5.4|^6.4|^7.3|^8.0",
         "symfony/console": "^5.4|^6.4|^7.3|^8.0",