Fix daily CI pool image and dependency resolution

- Added image: ubuntu-latest to pool config to satisfy 1ES Pipeline Template requirements
- Added PipAuthenticate@1 task with Graph Developer Experiences feed for CFS-compliant dependency resolution
- Changed pip install to use requirements-dev.txt instead of editable install

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

Author: ramsessanchez

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

@@ -21,6 +21,7 @@ extends:
   parameters:
     pool:
       name: Azure-Pipelines-1ESPT-ExDShared
+      image: ubuntu-latest
       os: linux
     sdl:
       sourceAnalysisPool:
@@ -47,10 +48,16 @@ extends:
                 inputs:
                   versionSpec: '3.12'
 
+              - task: PipAuthenticate@1
+                displayName: Authenticate with Azure Artifacts
+                inputs:
+                  artifactFeeds: Graph Developer Experiences/GraphDeveloperExperiences_Public
+                  onlyAddExtraIndex: false
+
               - script: python -m pip install --upgrade pip
                 displayName: Upgrade pip
                 workingDirectory: $(Build.SourcesDirectory)
 
-              - script: pip install -e ".[dev]"
+              - script: pip install -r requirements-dev.txt
                 displayName: Install dependencies
                 workingDirectory: $(Build.SourcesDirectory)