Update pipeline

Author: moritzkoerber

.azuredevops/deploy-azure-function.yaml

@@ -49,9 +49,18 @@ jobs:
           SecretsFilter: "*"
           RunAsPreJob: false
 
-      - script: |
+      - bash: |
           python -m pip install --upgrade pip && \
-          pip install --target="$(functionAppPath)/.python_packages/lib/site-packages" -r requirements.txt
+          python -m pip install poetry~="1.8" poetry-plugin-export
+        displayName: "Install poetry"
+
+      - bash: |
+          python -m poetry export -f requirements.txt --without-hashes > requirements.txt
+        displayName: "Export dependencies"
+
+      - bash: |
+          python -m pip install -t "$(functionAppPath)/.python_packages/lib/site-packages" \
+          -r requirements.txt
         displayName: "Install dependencies"
 
       - task: ArchiveFiles@2