fix: docker/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN12-ZLIB-6008963
- https://snyk.io/vuln/SNYK-DEBIAN12-KRB5-7411314
- https://snyk.io/vuln/SNYK-DEBIAN12-KRB5-7411314
- https://snyk.io/vuln/SNYK-DEBIAN12-KRB5-7411315
- https://snyk.io/vuln/SNYK-DEBIAN12-OPENSSL-7411350

docker/Dockerfile

@@ -10,7 +10,7 @@
 # such information to foreign countries or providing access to foreign
 # persons.
 
-FROM python:3.10-slim
+FROM python:3.13.0b2-slim
 
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get upgrade -y \