[Versions-ios.plist.in] added sgen-concurrent-gc (#1873)

* [Versions-ios.plist.in] added sgen-concurrent-gc

Partial fix for bug #53316

* Added sgen-concurrent-gc key for Mac as well

* Added other feature keys supported by Xamarin.Mac

* [Versions-mac.plist.in] Drop "activation" as a Feature

* [Versions-*.plist.in] Synced up and renamed modern-http-client

Versions-ios.plist.in

@@ -107,6 +107,9 @@
 		<string>mlaunch-observe-extension</string>
 		<string>mlaunch-launch-simulator</string>
 		<string>mlaunch-install-progress</string>
+		<string>http-client-handlers</string>
+		<string>mono-symbol-archive</string>
+		<string>sgen-concurrent-gc</string>
 	</array>
 </dict>
 </plist>

Versions-mac.plist.in

@@ -32,7 +32,9 @@
 	</dict>
 	<key>Features</key>
 	<array>
-		<string>feature-list</string>
+		<string>http-client-handlers</string>
+		<string>mono-symbol-archive</string>
+		<string>sgen-concurrent-gc</string>
 	</array>
 </dict>
 </plist>