Update python:3.14-trixie Docker digest to 6a3a203 (release-5.4) (#9706)

Update python:3.14-trixie Docker digest to 6a3a203

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:1.23
-FROM python:3.14-trixie@sha256:788e126878cd78b11972ce0897d1458694405e27601406949953a80282aaf60e
+FROM python:3.14-trixie@sha256:6a3a203773153c9153c897e19ac247ca32063254f47feb4a6f7a062a97824685
 ARG ARCH=amd64
 
 RUN apt-get update \