Dockerfile: Security upgrade python from 3.10-alpine to 3.11-alpine

[snyk-bot]

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Changes included in this PR

• cwltool.Dockerfile

We recommend upgrading to python:3.12.0a1-alpine, as this image has only 1 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Some of the most important vulnerabilities in your base image include:

Severity	Priority Score / 1000	Issue	Exploit Maturity
	471	Improper Locking SNYK-ALPINE317-OPENSSL-3188632	No Known Exploit
	471	Improper Locking SNYK-ALPINE317-OPENSSL-3188632	No Known Exploit

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[codecov]

Codecov Report

Merging #1781 (737579e) into main (e1a9100) will increase coverage by 0.11%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #1781      +/-   ##
==========================================
+ Coverage   82.40%   82.51%   +0.11%     
==========================================
  Files          47       47              
  Lines        8202     8209       +7     
  Branches     2136     2237     +101     
==========================================
+ Hits         6759     6774      +15     
+ Misses        944      941       -3     
+ Partials      499      494       -5     

Impacted Files	Coverage Δ
cwltool/job.py	81.21% <0.00%> (-0.40%)	⬇️
cwltool/provenance_profile.py	73.80% <0.00%> (-0.21%)	⬇️
cwltool/docker.py	72.13% <0.00%> (ø)
cwltool/utils.py	81.13% <0.00%> (+0.06%)	⬆️
cwltool/pathmapper.py	93.54% <0.00%> (+0.07%)	⬆️
cwltool/provenance.py	81.06% <0.00%> (+0.46%)	⬆️
cwltool/workflow_job.py	86.96% <0.00%> (+0.55%)	⬆️
cwltool/command_line_tool.py	86.99% <0.00%> (+0.57%)	⬆️
cwltool/task_queue.py	77.04% <0.00%> (+3.71%)	⬆️

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