Update 1 NuGet dependencies

Author: github-actions[bot]

nanoFramework.Azure.Devices.Client/Azure.Devices.Client.nfproj

@@ -92,8 +92,8 @@
       <HintPath>..\packages\nanoFramework.System.IO.Streams.1.1.15\lib\System.IO.Streams.dll</HintPath>
       <Private>True</Private>
     </Reference>
-    <Reference Include="System.Net, Version=1.10.14.59724, Culture=neutral, PublicKeyToken=c07d481e9758c731">
-      <HintPath>..\packages\nanoFramework.System.Net.1.10.14\lib\System.Net.dll</HintPath>
+    <Reference Include="System.Net, Version=1.10.21.18203, Culture=neutral, PublicKeyToken=c07d481e9758c731">
+      <HintPath>..\packages\nanoFramework.System.Net.1.10.21\lib\System.Net.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System.Net.Http, Version=1.5.22.16297, Culture=neutral, PublicKeyToken=c07d481e9758c731">

nanoFramework.Azure.Devices.Client/packages.config

@@ -7,7 +7,7 @@
   <package id="nanoFramework.Runtime.Native" version="1.5.4" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Collections" version="1.4.0" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.IO.Streams" version="1.1.15" targetFramework="netnanoframework10" />
-  <package id="nanoFramework.System.Net" version="1.10.14" targetFramework="netnano1.0" />
+  <package id="nanoFramework.System.Net" version="1.10.21" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Net.Http" version="1.5.22" targetFramework="netnano1.0" />
   <package id="nanoFramework.System.Text" version="1.2.7" targetFramework="netnanoframework10" />
   <package id="nanoFramework.System.Threading" version="1.1.8" targetFramework="netnano1.0" />

nanoFramework.Azure.Devices.Client/packages.lock.json

@@ -46,9 +46,9 @@
       },
       "nanoFramework.System.Net": {
         "type": "Direct",
-        "requested": "[1.10.14, 1.10.14]",
-        "resolved": "1.10.14",
-        "contentHash": "vY6FH/avkBR9YMyKSuR6xidCh2ig9kjNaDNrqVkxxhXHRLOK7m8f7f1oVGLidBD2EH180Lb9nJ6DRXTYMjg6vQ=="
+        "requested": "[1.10.21, 1.10.21]",
+        "resolved": "1.10.21",
+        "contentHash": "7ktL1n8yaz4m3YwQnSNuYqIava1TBAU1AnEQIjzpllhTdxszE6y3fv+h3IbbqdvB3YvqjwDyAOnHKC3ySZQ85Q=="
       },
       "nanoFramework.System.Net.Http": {
         "type": "Direct",