fix: exclude profiling_greenlet E2E test on Python 3.14

gevent/greenlet does not have Python 3.14 wheels yet.
Exclude the profiling_greenlet E2E test from the 3.14 matrix
and document the limitation in Container.md.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: wu-sheng

.github/workflows/CI.yaml

@@ -278,6 +278,11 @@ jobs:
             path: tests/e2e/case/profiling/threading/e2e.yaml
           - name: profiling_greenlet
             path: tests/e2e/case/profiling/greenlet/e2e.yaml
+        exclude:
+          # gevent/greenlet does not support Python 3.14 yet
+          - python-image-variant: "3.14-slim"
+            case:
+              name: profiling_greenlet
       fail-fast: false
     steps:
       - name: Checkout source codes

docs/en/setup/Container.md

@@ -6,6 +6,9 @@ source**
 This image hosts the SkyWalking Python agent package on top of official Python base images (full & slim) providing support from 
 Python 3.10 - 3.14.
 
+### Known Limitations
+- **Python 3.14**: greenlet/gevent profiling is not supported yet (greenlet does not have 3.14 wheels). Thread-based profiling works normally.
+
 ## How to use this image
 
 The images are hosted at [Docker Hub](https://hub.docker.com/r/apache/skywalking-python).