[Snyk] Security upgrade python from 3.11-alpine to 3.12.3-alpine (#136)

<p>This PR was automatically created by Snyk using the credentials of a
real user.</p><br />Keeping your Docker base image up-to-date means
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#### Changes included in this PR 


- Dockerfile.mac_chip

We recommend upgrading to `python:3.12.3-alpine`, as this image has only
0 known vulnerabilities. To do this, merge this pull request, then
verify your application still works as expected.


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Dockerfile.mac_chip

@@ -1,6 +1,6 @@
 # Use this Dockerfile if you are using a Mac with an Apple chip 
 
-FROM python:3.11-alpine
+FROM python:3.12.3-alpine
 
 WORKDIR /usr/app