Update NuGet API Key

Author: merbla

appveyor.yml

@@ -20,7 +20,7 @@ for:
 deploy:
   - provider: NuGet
     api_key:
-      secure: bd9z4P73oltOXudAjPehwp9iDKsPtC+HbgshOrSgoyQKr5xVK+bxJQngrDJkHdY8
+      secure: N59tiJECUYpip6tEn0xvdmDAEiP9SIzyLEFLpwiigm/8WhJvBNs13QxzT1/3/JW/
     skip_symbols: true
     on:
       branch: /^(master|dev)$/
@@ -30,4 +30,4 @@ deploy:
     artifact: /Serilog.*\.nupkg/
     tag: v$(appveyor_build_version)
     on:
-      branch: master
+      branch: master