fix: switch to artifacts-keyring for Azure Artifacts authentication

Replace PipAuthenticate task with artifacts-keyring package and
pip.conf. This handles auth at the pip level (including build isolation
subprocesses) rather than via env vars.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: ramsessanchez

.azure-pipelines/daily-ci-build.yml

@@ -48,16 +48,19 @@ extends:
                 inputs:
                   versionSpec: '3.12'
 
-              - script: pip install setuptools>=65.5.0 wheel --index-url https://pypi.org/simple
-                displayName: Install build tools from PyPI
+              - script: pip install artifacts-keyring --index-url https://pypi.org/simple
+                displayName: Install Azure Artifacts keyring
                 workingDirectory: $(Build.SourcesDirectory)
 
-              - task: PipAuthenticate@1
-                displayName: Authenticate with Azure Artifacts
-                inputs:
-                  artifactFeeds: microsoftgraph/GraphDeveloperExperiences_Public
+              - script: |
+                  mkdir -p ~/.config/pip
+                  cat > ~/.config/pip/pip.conf << 'EOF'
+                  [global]
+                  index-url=https://microsoftgraph.pkgs.visualstudio.com/0985d294-5762-4bc2-a565-161ef349ca3e/_packaging/GraphDeveloperExperiences_Public/pypi/simple/
+                  EOF
+                displayName: Configure pip to use Azure Artifacts feed
 
-              - script: pip install -e ".[dev]" --no-build-isolation
+              - script: pip install -e ".[dev]"
                 displayName: Install dependencies
                 workingDirectory: $(Build.SourcesDirectory)