PIR: Execute scan for all brokers (#6175)

Task/Issue URL:
https://app.asana.com/1/137249556945/project/72649045549333/task/1210287418907280?focus=true

### Description
See attached task description

### Steps to test this PR

https://app.asana.com/1/137249556945/project/72649045549333/task/1210450311289814?focus=true

Author: karlenDimla

pir/pir-internal/src/main/java/com/duckduckgo/pir/internal/scan/PirForegroundScanService.kt

@@ -72,7 +72,7 @@ class PirForegroundScanService : Service(), CoroutineScope by MainScope() {
         startForeground(1, notification)
 
         launch {
-            val result = pirScan.execute(supportedBrokers, this@PirForegroundScanService, MANUAL)
+            val result = pirScan.executeAllBrokers(this@PirForegroundScanService, MANUAL)
             if (result.isSuccess) {
                 notificationManagerCompat.checkPermissionAndNotify(
                     applicationContext,

pir/pir-internal/src/main/java/com/duckduckgo/pir/internal/scan/PirScheduledScanWorker.kt

@@ -40,7 +40,7 @@ class PirScheduledScanRemoteWorker(
 
     override suspend fun doRemoteWork(): Result {
         logcat { "PIR-WORKER ($this}: doRemoteWork ${Process.myPid()}" }
-        val result = pirScan.execute(supportedBrokers, context.applicationContext, SCHEDULED)
+        val result = pirScan.executeAllBrokers(context.applicationContext, SCHEDULED)
 
         return if (result.isSuccess) {
             logcat { "PIR-WORKER ($this}: Successfully completed!" }