[2.2][SecurityBundle] Renamed pattern to path for firewalls, conform the routing changes

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | yes
| BC breaks?    | no
| Deprecations? | yes
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | not yet
| Related PR    | #6738