#585 - Remove ubuntu20.04 from azure

 * The Ubuntu-20.04 image for the Microsoft-hosted "Azure Pipelines" pool is deprecated and will be retired April 1st.

Signed-off-by: Chin Yeung Li <tli@nexb.com>

Author: chinyeungli

azure-pipelines.yml

@@ -5,14 +5,6 @@
 ################################################################################
 
 jobs:
-  - template: etc/ci/azure-posix.yml
-    parameters:
-      job_name: ubuntu20_cpython
-      image_name: ubuntu-20.04
-      python_versions: ["3.9", "3.10", "3.11"]
-      test_suites:
-        all: venv/bin/pytest -n 2 -vvs
-
   - template: etc/ci/azure-posix.yml
     parameters:
       job_name: ubuntu22_cpython