Fix Windows build failures

Author: jmschonfeld

Tests/FoundationEssentialsTests/FileManager/FileManagerTests.swift

@@ -774,7 +774,7 @@ private struct FileManagerTests {
                 "foo"
             }
             "bar"
-        }.test { fileManager in
+        }.test { (fileManager) throws in
             #expect(try fileManager.subpathsOfDirectory(atPath: ".").sorted() == ["bar", "dir", "dir/foo"])
             #expect(fileManager.changeCurrentDirectoryPath("dir"))
             #expect(try fileManager.subpathsOfDirectory(atPath: ".") == ["foo"])

Tests/FoundationEssentialsTests/FileManager/FilePlayground.swift

@@ -156,6 +156,6 @@ struct FilePlayground {
             try tester(fileManager)
         }
         try fileManager.removeItem(atPath: createdDir)
-        _fixLifetime(capturingDelegate) // Ensure capturingDelegate lives beyond the tester body
+        extendLifetime(capturingDelegate) // Ensure capturingDelegate lives beyond the tester body
     }
 }