Bump System.Text.RegularExpressions

Bumps System.Text.RegularExpressions from 4.3.0 to 4.3.1.

---
updated-dependencies:
- dependency-name: System.Text.RegularExpressions
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

samples/star-wars-fabulous-client/StarWars.Android/packages.config

@@ -46,7 +46,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="monoandroid81" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="monoandroid81" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="monoandroid81" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="monoandroid81" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="monoandroid81" />
   <package id="System.Threading" version="4.3.0" targetFramework="monoandroid81" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="monoandroid81" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="monoandroid81" />

samples/star-wars-fabulous-client/StarWars.iOS/packages.config

@@ -46,7 +46,7 @@
   <package id="System.Security.Cryptography.X509Certificates" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Text.Encoding.Extensions" version="4.3.0" targetFramework="xamarinios10" />
-  <package id="System.Text.RegularExpressions" version="4.3.0" targetFramework="xamarinios10" />
+  <package id="System.Text.RegularExpressions" version="4.3.1" targetFramework="xamarinios10" />
   <package id="System.Threading" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Threading.Tasks" version="4.3.0" targetFramework="xamarinios10" />
   <package id="System.Threading.Timer" version="4.3.0" targetFramework="xamarinios10" />