fix: forms-flow-data-analysis-api/Dockerfile to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-DEBIAN11-EXPAT-6227598
- https://snyk.io/vuln/SNYK-DEBIAN11-GNUTLS28-6159417
- https://snyk.io/vuln/SNYK-DEBIAN11-PERL-6085272
- https://snyk.io/vuln/SNYK-DEBIAN11-TAR-3253527
- https://snyk.io/vuln/SNYK-DEBIAN11-ZLIB-6008961

forms-flow-data-analysis-api/Dockerfile

@@ -1,5 +1,5 @@
 #Author: Kurian Benoy
-FROM python:3.11.7-slim-bullseye
+FROM python:3.13.0a3-slim-bullseye
 
 # set label for image
 LABEL Name="formsflow"