Fix PIR not building on xcode 16 (#3328)

Task/Issue URL:
https://app.asana.com/0/1201037661562251/1208378563410288/f
Tech Design URL:
CC:

**Description**:
Very minor to fix an odd build quirk in the QueueManager

**Steps to test this PR**:
1. Check the tests run and PIR still works, otherwise nothing to really
test directly

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LocalPackages/DataBrokerProtection/Sources/DataBrokerProtection/Scheduler/DataBrokerProtectionQueueManager.swift

@@ -24,10 +24,20 @@ protocol DataBrokerProtectionOperationQueue {
     var maxConcurrentOperationCount: Int { get set }
     func cancelAllOperations()
     func addOperation(_ op: Operation)
-    func addBarrierBlock(_ barrier: @escaping @Sendable () -> Void)
+    func addBarrierCompletionBlock(_ barrier: @escaping @Sendable () -> Void)
 }
 
-extension OperationQueue: DataBrokerProtectionOperationQueue {}
+extension OperationQueue: DataBrokerProtectionOperationQueue {
+    /*
+     An unfortunute necessarity due to an issue with xcode 16 and building for Product Review Release
+     Originally we just used addBarrierBlock directly, but now it won't build as it says
+     the extension doesn't conform to the protocol
+     The docs however say the method signiture is unchanged, so we've decided to blame the build system
+     */
+    func addBarrierCompletionBlock(_ barrier: @escaping @Sendable () -> Void) {
+        addBarrierBlock(barrier)
+    }
+}
 
 enum DataBrokerProtectionQueueMode {
     case idle
@@ -232,7 +242,7 @@ private extension DefaultDataBrokerProtectionQueueManager {
             return
         }
 
-        operationQueue.addBarrierBlock { [weak self] in
+        operationQueue.addBarrierCompletionBlock { [weak self] in
             let errorCollection = DataBrokerProtectionAgentErrorCollection(oneTimeError: nil, operationErrors: self?.operationErrorsForCurrentOperations())
             completion?(errorCollection)
             self?.resetModeAndClearErrors()

LocalPackages/DataBrokerProtection/Tests/DataBrokerProtectionTests/Mocks.swift

@@ -1373,7 +1373,7 @@ final class MockDataBrokerProtectionOperationQueue: DataBrokerProtectionOperatio
         self.operations.append(op)
     }
 
-    func addBarrierBlock(_ barrier: @escaping @Sendable () -> Void) {
+    func addBarrierCompletionBlock(_ barrier: @escaping @Sendable () -> Void) {
         didCallAddBarrierBlockCount += 1
         self.barrierBlock = barrier
     }