Update PR from comments on PR

Author: 0xLeif

Sources/Cache/Cache/AnyCacheable.swift

@@ -115,7 +115,7 @@ public class AnyCacheable: Cacheable, @unchecked Sendable {
             guard let output = resolvedValue as? Output else {
                 throw InvalidTypeError(
                     expectedType: Output.self,
-                    actualType: type(of: cacheGet(key))
+                    actualType: Value.self
                 )
             }
             return output

Sources/Cache/Cache/PersistableCache.swift

@@ -43,7 +43,6 @@ import Foundation
 public class PersistableCache<
     Key: RawRepresentable & Hashable, Value, PersistedValue
 >: Cache<Key, Value>, @unchecked Sendable where Key.RawValue == String {
-    private let persistLock = CacheLock()
 
     /// The name of the cache. This will be used as the filename when saving to disk.
     public let name: String
@@ -150,8 +149,8 @@ public class PersistableCache<
         - An error if the `data.write(to:)` call fails to write the JSON data to disk.
      */
     public func save() throws {
-        try persistLock.withLock {
-            let persistedValues = allValues.compactMapValues(persistedValueMap)
+        try lock.withLock {
+            let persistedValues = unsafeValues(ofType: Value.self).compactMapValues(persistedValueMap)
             let json = JSON<Key>(initialValues: persistedValues)
             let data = try json.data()
             try data.write(to: url.fileURL(withName: name))
@@ -164,7 +163,7 @@ public class PersistableCache<
      - Throws: An error if the file manager fails to remove the cache file.
      */
     public func delete() throws {
-        try persistLock.withLock {
+        try lock.withLock {
             try FileManager.default.removeItem(at: url.fileURL(withName: name))
         }
     }