Extend review of SE-0447 to October 15, 2024 (#2588)

Author: DougGregor

proposals/0447-span-access-shared-contiguous-storage.md

@@ -3,7 +3,7 @@
 * Proposal: [SE-0447](0447-span-access-shared-contiguous-storage.md)
 * Authors: [Guillaume Lessard](https://github.com/glessard), [Michael Ilseman](https://github.com/milseman), [Andrew Trick](https://github.com/atrick)
 * Review Manager: [Doug Gregor](https://github.com/DougGregor)
-* Status: **Active review (September 17...October 1, 2024)**
+* Status: **Active review (September 17...October 15, 2024)**
 * Roadmap: [BufferView Roadmap](https://forums.swift.org/t/66211)
 * Bug: rdar://48132971, rdar://96837923
 * Implementation: https://github.com/swiftlang/swift/pull/76406