[main] Update powershell to 7.2.1 to resolve CVE-2021-43896 (#1818)

SPECS/powershell/powershell.signatures.json

@@ -1,5 +1,5 @@
 {
  "Signatures": {
-  "powershell-7.0.2-linux-x64.tar.gz": "e7e458a32c51c6ce43647b8a0eb7fbd9da1b67850c18e389f0eef7c7109891fb"
+  "powershell-7.2.1-linux-x64.tar.gz": "337d9864799ad09b46d261071b9f835f69f078814409bc2681f4cc2857b6bda5"
  }
 }

SPECS/powershell/powershell.spec

@@ -1,7 +1,7 @@
 Summary:        PowerShell is an automation and configuration management platform.
 Name:           powershell
-Version:        7.0.2
-Release:        2%{?dist}
+Version:        7.2.1
+Release:        1%{?dist}
 Vendor:         Microsoft Corporation
 Distribution:   Mariner
 License:        MIT
@@ -46,6 +46,8 @@ ln -s /opt/microsoft/powershell/7/pwsh %{buildroot}%{_bindir}/pwsh
 %license /opt/microsoft/powershell/7/LICENSE.txt
 
 %changelog
+*   Mon Dec 27 2021 Henry Beberman <henry.beberman@microsoft.com> 7.2.1-1
+-   Update version to 7.2.1.
 *   Sat Oct 16 2021 Pawel Winogrodzki <pawelwi@microsoft.com> - 7.0.2-2
 -   Adjusting the build after recent RPM version update.
     Going to extract source in the %%install section now.

cgmanifest.json

@@ -21414,8 +21414,8 @@
         "type": "other",
         "other": {
           "name": "powershell",
-          "version": "7.0.2",
-          "downloadUrl": "https://github.com/PowerShell/PowerShell/releases/download/v7.0.2/powershell-7.0.2-linux-x64.tar.gz"
+          "version": "7.2.1",
+          "downloadUrl": "https://github.com/PowerShell/PowerShell/releases/download/v7.2.1/powershell-7.2.1-linux-x64.tar.gz"
         }
       }
     },