test: use phan major version 6 code analysis

Now that PHP 7 support has been dropped, we can use the latest release of the
phan code analyser.

Patch releases before 6.0.7 had a problem with the function signatures for some
Redis methods. That was corrected in phan/phan#5546 and
released in phan version 6.0.7. So that version is required as the minimum here.

#41650

Author: phil-davis

changelog/unreleased/41650

@@ -0,0 +1,10 @@
+Test: use phan major version 6 code analysis
+
+Now that PHP 7 support has been dropped, we can use the latest release of the
+phan code analyser.
+
+Patch releases before 6.0.7 had a problem with the function signatures for some
+Redis methods. That was corrected in https://github.com/phan/phan/pull/5546 and
+released in phan version 6.0.7. So that version is required as the minimum here.
+
+https://github.com/owncloud/core/pull/41650

lib/private/User/DeletedUser.php

@@ -33,8 +33,7 @@
  * This class is intended to be used internally.
  */
 class DeletedUser implements IUser {
-	/** @var Emitter */
-	private $emitter;
+	private Manager $emitter;
 	/** @var IConfig */
 	private $config;
 	/** @var IURLGenerator */

vendor-bin/phan/composer.json

@@ -1,5 +1,5 @@
 {
     "require": {
-        "phan/phan": "^5.5"
+        "phan/phan": "^6.0.7"
     }
 }