[CI] Fix warnings from pytest in Azure CI (#1617)

* [CI] Fix warnings from pytest

* [CI] Append to LD_LIBRARY_PATH instead of overwrite

---------
Signed-off-by: nileshnegi <Nilesh.Negi@amd.com>

.azuredevops/multinode-ci-nightly.yml

@@ -54,13 +54,12 @@ jobs:
       extraBuildFlags: >-
         -DCMAKE_BUILD_TYPE=Release
         -DBUILD_TESTS=ON
-        -DGPU_TARGETS=gfx942
         -GNinja
   - template: ${{ variables.CI_TEMPLATE_PATH }}/steps/test.yml@pipelines_repo
     parameters:
       componentName: rccl
       testDir: $(Build.SourcesDirectory)/build/test
-      testExecutable: './rccl-UnitTests'
+      testExecutable: 'LD_LIBRARY_PATH=$(Build.SourcesDirectory)/build:${LD_LIBRARY_PATH} NCCL_DEBUG=INFO RCCL_ENABLE_SIGNALHANDLER=1 ./rccl-UnitTests'
       testParameters: '--gtest_output=xml:./test_output.xml --gtest_color=yes'
   - ${{ each pytestScript in parameters.pytestList }}:
     - task: Bash@3
@@ -69,4 +68,4 @@ jobs:
       inputs:
         targetType: inline
         workingDirectory: $(Build.SourcesDirectory)/$(pytestFolder)
-        script: pytest test_${{ pytestScript }}.py
+        script: pytest ${{ pytestScript }}.py

.azuredevops/multinode-ci-pr.yml

@@ -65,7 +65,7 @@ stages:
       parameters:
         componentName: rccl
         testDir: $(Build.SourcesDirectory)/build/test
-        testExecutable: './rccl-UnitTests'
+        testExecutable: 'LD_LIBRARY_PATH=$(Build.SourcesDirectory)/build:${LD_LIBRARY_PATH} NCCL_DEBUG=INFO RCCL_ENABLE_SIGNALHANDLER=1 ./rccl-UnitTests'
         testParameters: '--gtest_output=xml:./test_output.xml --gtest_color=yes'
     - ${{ each pytestScript in parameters.pytestList }}:
       - task: Bash@3
@@ -74,4 +74,4 @@ stages:
         inputs:
           targetType: inline
           workingDirectory: $(Build.SourcesDirectory)/$(pytestFolder)
-          script: pytest test_${{ pytestScript }}.py
+          script: pytest ${{ pytestScript }}.py