Upgrading robotframework confluentkafka lib

- upgrading confluentkafka library for robotframework to 2.4.0-2
- reverted the change for the CSIT as the fix was done in the
  dmi-plugin-stub

Issue-ID: CPS-2363
Change-Id: I3f7cd622177485435566ef814ffb38d4a93ed0ad
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>
diff --git a/csit/prepare-csit.sh b/csit/prepare-csit.sh
index fbd5dc5..1b8578e 100755
--- a/csit/prepare-csit.sh
+++ b/csit/prepare-csit.sh
@@ -71,7 +71,7 @@
 python3 --version
 
 echo "Installing confluent kafka library for robot framework:"
-pip install robotframework-confluentkafkalibrary
+pip install robotframework-confluentkafkalibrary==2.4.0-2
 
 pip freeze
 python3 -m robot.run --version || :
\ No newline at end of file
diff --git a/csit/pylibs.txt b/csit/pylibs.txt
index 32bfa6f..3eeb1ab 100644
--- a/csit/pylibs.txt
+++ b/csit/pylibs.txt
@@ -9,7 +9,7 @@
 robotframework-selenium2library==3.0.0
 robotframework-extendedselenium2library
 robotframework-sshlibrary
-robotframework-confluentkafkalibrary
+robotframework-confluentkafkalibrary==2.4.0-2
 scapy
 # Module jsonpath is needed by current AAA idmlite suite.
 jsonpath-rw
diff --git a/csit/tests/cps-data-operations/cps-data-operations.robot b/csit/tests/cps-data-operations/cps-data-operations.robot
index 85e8a2a..6ac2a95 100644
--- a/csit/tests/cps-data-operations/cps-data-operations.robot
+++ b/csit/tests/cps-data-operations/cps-data-operations.robot
@@ -63,8 +63,7 @@
         Compare Header Values       ${header_key_value_pair[0]}   ${header_key_value_pair[1]}      "ce_specversion"      "1.0"
         Compare Header Values       ${header_key_value_pair[0]}   ${header_key_value_pair[1]}      "ce_type"             "org.onap.cps.ncmp.events.async1_0_0.DataOperationEvent"
         Compare Header Values       ${header_key_value_pair[0]}   ${header_key_value_pair[1]}      "ce_correlationid"    "${expectedRequestId}"
-        # Need to check the root cause of this failure. To be investigated separately as part of CPS-2363
-        # Compare Header Values       ${header_key_value_pair[0]}   ${header_key_value_pair[1]}      "ce_source"           "DMI"
+        Compare Header Values       ${header_key_value_pair[0]}   ${header_key_value_pair[1]}      "ce_source"           "DMI"
     END
     [Teardown]                      Basic Teardown                    ${group_id}