Bump Google.Protobuf from 3.13.0 to 3.19.4

Bumps [Google.Protobuf](https://github.com/protocolbuffers/protobuf) from 3.13.0 to 3.19.4.
- [Release notes](https://github.com/protocolbuffers/protobuf/releases)
- [Changelog](https://github.com/protocolbuffers/protobuf/blob/master/generate_changelog.py)
- [Commits](protocolbuffers/protobuf@v3.13.0...v3.19.4)

---
updated-dependencies:
- dependency-name: Google.Protobuf
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

NSF2SQL/packages.config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="BouncyCastle" version="1.8.6.1" targetFramework="net472" />
-  <package id="Google.Protobuf" version="3.13.0" 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" />
   <package id="K4os.Compression.LZ4.Streams" version="1.2.6" targetFramework="net472" />