[Snyk] Security upgrade alpine from latest to 3.18.3

[gertd]

This PR was automatically created by Snyk using the credentials of a real user.

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

• Dockerfile

We recommend upgrading to alpine:3.18.3, as this image has only 0 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	Issue	Exploit Maturity
	Improper Authentication SNYK-ALPINE318-OPENSSL-5776808	No Known Exploit
	Improper Authentication SNYK-ALPINE318-OPENSSL-5776808	No Known Exploit
	Inefficient Regular Expression Complexity SNYK-ALPINE318-OPENSSL-5788370	No Known Exploit
	Inefficient Regular Expression Complexity SNYK-ALPINE318-OPENSSL-5788370	No Known Exploit
	CVE-2023-3817 SNYK-ALPINE318-OPENSSL-5821142	No Known Exploit

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[github-actions[bot]]

Pull Request Test Coverage Report for Build 5799637963

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 51.111%

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Totals
Change from base Build 3858564865:	0.0%
Covered Lines:	184
Relevant Lines:	360

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 5799637963

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 51.111%

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Totals
Change from base Build 3858564865:	0.0%
Covered Lines:	184
Relevant Lines:	360

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💛 - Coveralls