Robotframework request package upgrade changes

Current working package version
   robotframework-requests            0.7.2

To Test:
      pip3 install robotframework-requests -U
                 or
      # Once this commit is merged.
      pip3 install -r requirements.txt

      Version latest:
      robotframework-requests         0.9.3

Refer Documentation:
   https://marketsquare.github.io/robotframework-requests/doc/RequestsLibrary.html

What is not changed:
     - The test cases under directory tests/ is not modified and is
       deprecated but you can continue using it with older package
       and configuration using

       git clone -b v3.0-stable https://github.com/openbmc/openbmc-test-automation

Tested:
      Upstream HW_CI test list, firmware code update and few other
      test suite like ipmi, certificate, dumps, ffdc and redfish
      test suites.

Note: I have not tested end to end, so it is likely there could be
      grey areas where it could fail but should be minor w.r.t
      response data format.

Resolves:  openbmc/openbmc-test-automation#2105

Change-Id: Ie03b25ff88948bcccb09e9d82f8da86e28c92697
Signed-off-by: George Keishing <gkeishin@in.ibm.com>
diff --git a/openpower/ext_interfaces/test_vmicert_management.robot b/openpower/ext_interfaces/test_vmicert_management.robot
index 02b0e3a..9eeb34b 100644
--- a/openpower/ext_interfaces/test_vmicert_management.robot
+++ b/openpower/ext_interfaces/test_vmicert_management.robot
@@ -614,7 +614,8 @@
     ${csr_data}=  Create Dictionary  CsrString  ${csr}
     Set To Dictionary  ${data}  data  ${csr_data}
 
-    ${resp}=  Post Request  openbmc  ${cert_uri}  &{data}  headers=${headers}  timeout=${read_timeout}
+    ${resp}=  POST On Session  openbmc  ${cert_uri}  &{data}  headers=${headers}
+    ...  timeout=${read_timeout}  expected_status=any
     Log to console  ${resp.content}
 
     [Return]  ${resp}
@@ -643,7 +644,8 @@
 
     ${cert_uri}=  Set Variable  ${VMI_BASE_URI}Host/Certificate/root
 
-    ${resp}=  Get Request  openbmc  ${cert_uri}  &{data}  headers=${headers}
+    ${resp}=  GET On Session  openbmc  ${cert_uri}  &{data}  headers=${headers}
+    ...  expected_status=any
 
     Should Be Equal As Strings  ${resp.status_code}  ${valid_status_code}
     Return From Keyword If  ${resp.status_code} != ${HTTP_OK}