bug #36984 [SecurityBundle] Fixed version constraint on security-core…

… and security-guard (wouterj)

This PR was merged into the 5.1 branch.

Discussion
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[SecurityBundle] Fixed version constraint on security-core and security-guard

| Q             | A
| ------------- | ---
| Branch?       | 5.1
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix https://symfony.com/blog/new-in-symfony-5-1-updated-security-system#comment-24048
| License       | MIT
| Doc PR        | -

We somehow completely forgot to upgrade these version constraints to `^5.1`.

*build failures are unrelated*

Commits
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e3d9b25 Fixed security-* package dependencies

src/Symfony/Bundle/SecurityBundle/composer.json

@@ -23,9 +23,9 @@
         "symfony/event-dispatcher": "^5.1",
         "symfony/http-kernel": "^5.0",
         "symfony/polyfill-php80": "^1.15",
-        "symfony/security-core": "^4.4|^5.0",
+        "symfony/security-core": "^5.1",
         "symfony/security-csrf": "^4.4|^5.0",
-        "symfony/security-guard": "^4.4|^5.0",
+        "symfony/security-guard": "^5.1",
         "symfony/security-http": "^5.1"
     },
     "require-dev": {