Fix PHPStan errors

Author: jbrooksuk

src/Models/Component.php

@@ -83,7 +83,7 @@ public function group(): BelongsTo
     /**
      * Get the incidents for the component.
      *
-     * @return BelongsToMany<Incident, $this>
+     * @return BelongsToMany<Incident, $this, IncidentComponent>
      */
     public function incidents(): BelongsToMany
     {

src/Models/Incident.php

@@ -109,8 +109,8 @@ protected static function boot()
     /**
      * Get the components impacted by this incident.
      *
-     * @return BelongsToMany<Component, $this>
-     */
+     * @return BelongsToMany<Component, $this, IncidentComponent>
+ */
     public function components(): BelongsToMany
     {
         return $this->belongsToMany(Component::class, 'incident_components')