Include sqlite-nio (#418)

SSWG acceptance here: https://forums.swift.org/t/sswg-0022-sqlitenio/66548/3

Author: ktoso

_data/sswg/projects.yml

@@ -158,3 +158,10 @@
   pitched: 2023-01-19
   accepted: 2023-02-02
   url: https://github.com/apple/swift-cassandra-client
+
+- name: SQLite NIO
+  description: 🐬 Non-blocking, event-driven Swift client for SQLite
+  maturity: Sandbox
+  pitched: 2023-08-03
+  accepted: 2023-09-28
+  url: https://github.com/vapor/sqlite-nio