PYTHON-5284 - Remove eventlet tests for CPython > 3.9 (#2290)

.evergreen/generated_configs/variants.yml

@@ -536,17 +536,6 @@ buildvariants:
       AUTH: auth
       SSL: ssl
       PYTHON_BINARY: /opt/python/3.9/bin/python3
-  - name: green-eventlet-rhel8-python3.13
-    tasks:
-      - name: .standalone .noauth .nossl .sync_async
-    display_name: Green Eventlet RHEL8 Python3.13
-    run_on:
-      - rhel87-small
-    expansions:
-      GREEN_FRAMEWORK: eventlet
-      AUTH: auth
-      SSL: ssl
-      PYTHON_BINARY: /opt/python/3.13/bin/python3
   - name: green-gevent-rhel8-python3.13
     tasks:
       - name: .standalone .noauth .nossl .sync_async

.evergreen/scripts/generate_config.py

@@ -343,6 +343,10 @@ def create_green_framework_variants():
     tasks = [".standalone .noauth .nossl .sync_async"]
     host = DEFAULT_HOST
     for python, framework in product([CPYTHONS[0], CPYTHONS[-1]], ["eventlet", "gevent"]):
+        if framework == "eventlet" and python == CPYTHONS[-1]:
+            # Eventlet has issues with dnspython > 2.0 and newer versions of CPython
+            # https://jira.mongodb.org/browse/PYTHON-5284
+            continue
         expansions = dict(GREEN_FRAMEWORK=framework, AUTH="auth", SSL="ssl")
         display_name = get_variant_name(f"Green {framework.capitalize()}", host, python=python)
         variant = create_variant(