deps/autoconf: bump python in /src/autoconf

Bumps python from 3.13-alpine to 3.14-alpine.

---
updated-dependencies:
- dependency-name: python
  dependency-version: 3.14.5-alpine
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

src/autoconf/Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.13-alpine@sha256:420cd0bf0f3998275875e02ecd5808168cf0843cbb4d3c536432f729247b2acc AS builder
+FROM python:3.14-alpine@sha256:5a824eb82cc75361f98611f3cfc5091ea33f10a6ccea4d4ebdabbc523b9a1614 AS builder
 
 # Export var for specific actions on linux/arm/v7
 ARG TARGETPLATFORM
@@ -33,7 +33,7 @@ COPY src/common/utils utils
 COPY src/autoconf autoconf
 COPY src/VERSION VERSION
 
-FROM python:3.13-alpine@sha256:420cd0bf0f3998275875e02ecd5808168cf0843cbb4d3c536432f729247b2acc
+FROM python:3.14-alpine@sha256:5a824eb82cc75361f98611f3cfc5091ea33f10a6ccea4d4ebdabbc523b9a1614
 
 # Set default umask to prevent huge recursive chmod increasing the final image size
 RUN umask 027