Bump BouncyCastle from 1.8.6.1 to 1.8.9 in /NSF2SQL

Bumps BouncyCastle from 1.8.6.1 to 1.8.9.

---
updated-dependencies:
- dependency-name: BouncyCastle
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

NSF2SQL/packages.config

@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="BouncyCastle" version="1.8.6.1" targetFramework="net472" />
+  <package id="BouncyCastle" version="1.8.9" targetFramework="net472" />
   <package id="Google.Protobuf" version="3.19.4" targetFramework="net472" />
   <package id="interop.domino.dll" version="1.0.0" targetFramework="net472" />
   <package id="K4os.Compression.LZ4" version="1.2.6" targetFramework="net472" />