enable arps in subs

Author: asonnenschein

planet/cli/subscriptions.py

@@ -406,6 +406,7 @@ def request_catalog(item_types,
     required=True,
     help='Planetary variable type.',
     type=click.Choice([
+        "analysis_ready_ps",
         "biomass_proxy",
         "land_surface_temperature",
         "soil_water_content",

planet/subscription_request.py

@@ -280,7 +280,8 @@ def catalog_source(
 
 
 def planetary_variable_source(
-    var_type: Literal["biomass_proxy",
+    var_type: Literal["analysis_ready_ps",
+                      "biomass_proxy",
                       "land_surface_temperature",
                       "soil_water_content",
                       "vegetation_optical_depth",
@@ -304,9 +305,10 @@ def planetary_variable_source(
     Note: this function does not validate variable types and ids.
 
     Parameters:
-        var_type: one of "biomass_proxy", "land_surface_temperature",
-            "soil_water_content", "vegetation_optical_depth",
-            "forest_carbon_diligence_30m, or field_boundaries_sentinel_2_p1m".
+        var_type: one of "analysis_ready_ps", "biomass_proxy",
+            "land_surface_temperature", "soil_water_content",
+            "vegetation_optical_depth", "forest_carbon_diligence_30m,
+            or field_boundaries_sentinel_2_p1m".
         var_id: a value such as "SWC-AMSR2-C_V1.0_100" for soil water
             content derived from AMSR2 C band.
         geometry: The area of interest of the subscription that will be