build using pip-26.2.2, certifi>=2026.10.19 (#1473)

Dockerfile

@@ -33,6 +33,7 @@ COPY requirements-docker.txt .
 RUN \
     set -x && \
     . /opt/venv/bin/activate && \
+    pip install "pip @ https://files.pythonhosted.org/packages/3f/06/3e4420302363fbb71be3c7f35ce042f54bfca330e3e66b3a2e3c4cca579f/pip-26.2.2-py3-none-any.whl#sha256=fd7f4dfa8190e014013b9f08f3e973f4e4c26ffd179a204895533a7254813a70" && \
     pip install --no-cache-dir -r requirements-docker.txt
 
 # STAGE 2: FINAL