Update python Docker tag to v3.14 (main) (#8406)

Update python Docker tag to v3.14

| datasource | package | from | to   |
| ---------- | ------- | ---- | ---- |
| docker     | python  | 3.13 | 3.14 |

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

tests/Dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1.19
-FROM python:3.13-bookworm@sha256:afe6f5c21893b34eff06617b81429646e21981cfa36e6e5916e8b3608d6fcba3
+FROM python:3.14-bookworm@sha256:776ab36198fa76233d7b91abb01ab694332695ba214de14b62e4e558fd530464
 
 RUN apt-get update \
 	&& apt-get install -y curl git apache2-utils \