Merge pull request #287 from AquaticInformatics/dependabot/nuget/Samples/DotNetSdk/ObservationReportExporter/System.Text.RegularExpressions-4.3.1

Bump System.Text.RegularExpressions from 4.3.0 to 4.3.1 in /Samples/DotNetSdk/ObservationReportExporter

Author: Doug Schmidt

Samples/DotNetSdk/ObservationReportExporter/packages.config

@@ -60,7 +60,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="net472" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="net472" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="net472" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="net472" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="net472" />
   <package id="System.Threading" version="4.3.0" targetFramework="net472" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="net472" />
   <package id="System.Threading.Tasks.Extensions" version="4.5.4" targetFramework="net472" />