Update stubs

Author: phpstan-bot

stubs/Zend/ArrayAccess.php

@@ -2,15 +2,25 @@
 
 interface ArrayAccess
 {
-    /** @tentative-return-type */
+    /**
+     * @tentative-return-type
+     * @return bool
+     */
     public function offsetExists(mixed $offset);
     /**
      * Actually this should be return by ref but atm cannot be.
      * @tentative-return-type
+     * @return mixed
      */
     public function offsetGet(mixed $offset);
-    /** @tentative-return-type */
+    /**
+     * @tentative-return-type
+     * @return void
+     */
     public function offsetSet(mixed $offset, mixed $value);
-    /** @tentative-return-type */
+    /**
+     * @tentative-return-type
+     * @return void
+     */
     public function offsetUnset(mixed $offset);
 }

stubs/Zend/Countable.php

@@ -2,6 +2,9 @@
 
 interface Countable
 {
-    /** @tentative-return-type */
+    /**
+     * @tentative-return-type
+     * @return int
+     */
     public function count();
 }