fix: 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-SHADOW-1559391
- https://snyk.io/vuln/SNYK-DEBIAN12-SHADOW-1559403
- https://snyk.io/vuln/SNYK-DEBIAN12-SHADOW-5423923
- https://snyk.io/vuln/SNYK-DEBIAN12-SHADOW-5879156

Dockerfile

@@ -1,5 +1,5 @@
 
-FROM python:3.8-slim as base
+FROM python:3.13.0b4-slim as base
 
 FROM base as builder
 # Any python libraries that require system libraries to be installed will likely