.build/dependencies.props: Bumped J2N to 2.2.0-alpha-0021 (apache#1189)

Author: NightOwl888

.build/dependencies.props

@@ -38,7 +38,7 @@
     <IKVMPackageVersion>8.7.5</IKVMPackageVersion>
     <IKVMMavenSdkPackageVersion>1.6.7</IKVMMavenSdkPackageVersion>
     <!-- J2N will break binary compatibility in 3.0.0 to fix the APIs of collection types -->
-    <J2NPackageVersion>[2.1.0, 3.0.0)</J2NPackageVersion>
+    <J2NPackageVersion>[2.2.0-alpha-0021, 3.0.0)</J2NPackageVersion>
     <LiquidTestReportsMarkdownPackageVersion>1.0.9</LiquidTestReportsMarkdownPackageVersion>
     <MicrosoftAspNetCoreHttpAbstractionsPackageVersion>2.3.0</MicrosoftAspNetCoreHttpAbstractionsPackageVersion>
     <MicrosoftAspNetCoreTestHostPackageVersion>8.0.19</MicrosoftAspNetCoreTestHostPackageVersion>