fix: apps/candlestick-patterns/Dockerfile to reduce vulnerabilities

[phbrgnomo]

Snyk has created this PR to fix 4 vulnerabilities in the dockerfile dependencies of this project.

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

Snyk changed the following file(s):

• apps/candlestick-patterns/Dockerfile

We recommend upgrading to python:3.15-rc-alpine3.22, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Improper Verification of Cryptographic Signature SNYK-DEBIAN13-APT-5675173	150
	Improper Verification of Cryptographic Signature SNYK-DEBIAN13-APT-5675173	150
	CVE-2024-56433 SNYK-DEBIAN13-SHADOW-8551157	150
	Out-of-bounds Read SNYK-DEBIAN13-UTILLINUX-14200590	150
	Information Exposure SNYK-DEBIAN13-UTILLINUX-5698535	150

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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🦉 Out-of-bounds Read
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