Update schema pack to 2021.4

Update the script to point to 2021.4.

Tested: built for evb-ast2500, ran Redfish Service Validator:
                             BASE    2021.4
metadataNamespaces:          2330      2388
pass:                        3239      3249
passAction:                     8         8
passGet:                      120       121
passRedfishUri:               114       115
skipNoSchema:                   3         3
skipOptional:                2180      2184
unverifiedAdditional.complex:   2         0
warnDeprecated:               315       315
warningPresent:                12        11
Validation has:         succeeded succeeded

Saw new schemas:
curl -k https://$bmc/redfish/v1/JsonSchemas/Manager/Manager.json
...
    "title": "#Manager.v1_14_0.Manager"
}

Signed-off-by: Sui Chen <suichen@google.com>
Change-Id: I6560ec010362df28e264d80452059b534b3f89ba
diff --git a/static/redfish/v1/schema/Chassis_v1.xml b/static/redfish/v1/schema/Chassis_v1.xml
index 824c4af..a3f782d 100644
--- a/static/redfish/v1/schema/Chassis_v1.xml
+++ b/static/redfish/v1/schema/Chassis_v1.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!---->
 <!--################################################################################       -->
-<!--# Redfish Schema:  Chassis v1.18.0                                                     -->
+<!--# Redfish Schema:  Chassis v1.19.0                                                     -->
 <!--#                                                                                      -->
 <!--# For a detailed change log, see the README file contained in the DSP8010 bundle,      -->
 <!--# available at http://www.dmtf.org/standards/redfish                                   -->
@@ -1546,6 +1546,15 @@
         <Property Name="Measurements" Type="Collection(SoftwareInventory.MeasurementBlock)" Nullable="false">
           <Annotation Term="OData.Description" String="An array of DSP0274-defined measurement blocks."/>
           <Annotation Term="OData.LongDescription" String="This property shall contain an array of DSP0274-defined measurement blocks."/>
+          <Annotation Term="Redfish.Revisions">
+            <Collection>
+              <Record>
+                <PropertyValue Property="Kind" EnumMember="Redfish.RevisionKind/Deprecated"/>
+                <PropertyValue Property="Version" String="v1_19_0"/>
+                <PropertyValue Property="Description" String="This property has been deprecated in favor of the ComponentIntegrity resource."/>
+              </Record>
+            </Collection>
+          </Annotation>
         </Property>
       </EntityType>
     </Schema>
@@ -1621,5 +1630,13 @@
       </ComplexType>
     </Schema>
 
+    <Schema xmlns="http://docs.oasis-open.org/odata/ns/edm" Namespace="Chassis.v1_19_0">
+      <Annotation Term="Redfish.OwningEntity" String="DMTF"/>
+      <Annotation Term="Redfish.Release" String="2021.4"/>
+      <Annotation Term="OData.Description" String="This version was created to deprecate Measurements in favor of measurement reporting in the ComponentIntegrity resource."/>
+
+      <EntityType Name="Chassis" BaseType="Chassis.v1_18_0.Chassis"/>
+    </Schema>
+
   </edmx:DataServices>
 </edmx:Edmx>