Get ready for moving to active review

Author: younata

proposals/testing/NNNN-attachments.md renamed to proposals/testing/0009-attachments.md

@@ -1,8 +1,9 @@
 # Attachments
 
-* Proposal: [ST-NNNN](NNNN-attachments.md)
+* Proposal: [ST-0009](0009-attachments.md)
 * Authors: [Jonathan Grynspan](https://github.com/grynspan)
-* Status: **Awaiting review**
+* Review Manager: [Rachel Brindle](https://github.com/younata)
+* Status: **Active Review (March 21 - April 8, 2025)**
 * Bug: [swiftlang/swift-testing#714](https://github.com/swiftlang/swift-testing/issues/714)
 * Implementation: [swiftlang/swift-testing#973](https://github.com/swiftlang/swift-testing/pull/973)
 * Review: ([pitch](https://forums.swift.org/t/pitch-attachments/78072))