enhance: upgrade test Python runtime to 3.12 (#49622)

issue: #49516

### What changed

- Upgrade test runtime pins and Docker base images to Python 3.12.
- Update tests ruff target and Python-version docs to 3.12.
- Refresh Python client dependency pins that block Python 3.12
installation.
- Scope TestPyPI lookup to pymilvus via find-links so uv does not
require unsafe-best-match.
- Suppress third-party invalid escape sequence SyntaxWarning noise seen
during Python 3.12 pytest collection.

### Verification

- git diff --check
- uv pip install --python /tmp/milvus-tests-py312-uv-default/bin/python
--dry-run -r tests/python_client/requirements.txt
- python3.12 -m venv /tmp/milvus-tests-py312-pip-requirements && pip
install -r tests/python_client/requirements.txt --timeout 30 --retries 6
- pip check
- python -c 'import pymilvus, ujson; print(pymilvus.__version__,
ujson.__version__)'
- python -m pytest --collect-only -q
milvus_client/test_milvus_client_collection.py

Signed-off-by: zhuwenxing <wenxing.zhu@zilliz.com>

.github/workflows/mac.yaml

@@ -51,9 +51,9 @@ jobs:
         with:
           ref: ${{ github.event.inputs.branch || github.ref }}
       - name: Setup Python environment
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
-          python-version: '<3.12'
+          python-version: '3.12'
       - name: Install CMake 3.31.8
         run: |
           cmake --version || true

tests/.python-version

@@ -1 +1 @@
-3.10
+3.12

tests/README.md

@@ -105,7 +105,7 @@ $ ruff format .                 # format in place
 $ ruff format --check .         # format check only (CI-friendly)
 ```
 
-Rules enabled: `E`, `F`, `W`, `I`, `UP`. Target Python version: `3.10`.
+Rules enabled: `E`, `F`, `W`, `I`, `UP`. Target Python version: `3.12`.
 
 #### Lint only PR-changed files (Python Lint CI parity)
 

tests/README_CN.md

@@ -104,7 +104,7 @@ $ ruff format .                 # 原地格式化
 $ ruff format --check .         # 只检查不修改 (CI 友好)
 ```
 
-启用的规则：`E`、`F`、`W`、`I`、`UP`；目标 Python 版本：`3.10`。
+启用的规则：`E`、`F`、`W`、`I`、`UP`；目标 Python 版本：`3.12`。
 
 #### 仅检查 PR 修改的文件 (与 Python Lint CI 一致)
 

tests/docker/Dockerfile

@@ -9,7 +9,7 @@
 # is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 # or implied. See the License for the specific language governing permissions and limitations under the License.
 
-FROM python:3.8-buster
+FROM python:3.12-bullseye
 
 RUN apt-get update && apt-get install -y jq
 

tests/python_client/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.10-bullseye
+FROM python:3.12-bullseye
 
 RUN apt-get update && apt-get install -y jq
 

tests/python_client/README.md

@@ -73,7 +73,7 @@ $ kind export logs .
 
 ### PyMilvus Test Environment Deployment and Case Execution
 
-We recommend using Python 3 (3.8 or higher), consistent with the version supported by PyMilvus.
+We recommend using Python 3.12, consistent with the Python client CI runtime.
 
 > Note: Procedures listed below will be completed automatically if you deployed Milvus using KinD.
 

tests/python_client/README_CN.md

@@ -65,7 +65,7 @@ Milvus 支持4种部署方式，请根据需求选择部署方式，PyMilvus 支
 
 ### PyMilvus 测试环境部署及用例执行
 
-推荐使用 **Python 3(>= 3.8)** ，与 **[PyMilvus](https://pymilvus.readthedocs.io/en/latest/install.html)** 支持的 Python 版本保持一致。
+推荐使用 **Python 3.12**，与 Python client CI 运行环境保持一致。
 
 > **_NOTE:_**  如选择KinD部署方式，以下步骤可以自动完成
 

tests/python_client/pytest.ini

@@ -12,6 +12,7 @@ markers =
 
 filterwarnings =
     ignore::DeprecationWarning
+    ignore:invalid escape sequence:SyntaxWarning
 
 asyncio_default_fixture_loop_scope = function
 timeout_method = thread

tests/python_client/requirements.txt

@@ -1,8 +1,8 @@
---extra-index-url https://test.pypi.org/simple/
+--find-links https://test.pypi.org/simple/pymilvus/
 pytest-cov==2.8.1
 requests>=2.32.4
 scikit-learn>=1.5.2
-ujson==5.5.0
+ujson==5.10.0
 pytest==8.3.4
 pytest-asyncio==0.24.0
 pytest-timeout==1.3.3
@@ -18,7 +18,7 @@ pytest_tagging==1.6.0
 pytest-html==3.1.1
 delayed-assert==0.3.5
 kubernetes==17.17.0
-PyYAML==6.0
+PyYAML==6.0.2
 pytest-sugar==0.9.5
 pytest-random-order
 
@@ -37,14 +37,14 @@ npy-append-array==0.9.15
 Faker==19.2.0
 
 # for benchmark
-h5py==3.8.0
+h5py==3.11.0
 
 # for log
 loguru==0.7.0
 
 # util
-psutil==5.9.4
-pandas==1.5.3
+psutil==5.9.8
+pandas==2.2.3
 numpy==1.26.4
 tenacity==8.1.0
 rich==13.7.0
@@ -55,10 +55,10 @@ deepdiff==8.6.1
 # for test result analyzer
 prettytable==3.8.0
 pyarrow==14.0.1
-fastparquet==2023.7.0
+fastparquet==2024.11.0
 
 # for bf16 datatype
-ml-dtypes==0.2.0
+ml-dtypes==0.5.1
 
 # for text processing
 Unidecode==1.3.8

tests/ruff.toml

@@ -1,5 +1,5 @@
 line-length = 120
-target-version = "py310"
+target-version = "py312"
 extend-exclude = [
     ".venv",
     "__pycache__",