Bump Docker dependencies (OpenSSL and Poetry)

[bachya]

Describe what the PR does:

This PR bumps the version of OpenSSL and Poetry used by the Dockerfile.

Does this fix a specific issue?

N/A

Checklist:

• Confirm that one or more new tests are written for the new functionality.
• Run tests and ensure everything passes (with 100% test coverage).
• Update README.md with any new documentation.
• Add yourself to AUTHORS.md.

[codecov]

Codecov Report

Merging #369 (8f4b052) into dev (705793b) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##               dev      #369   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           28        28           
  Lines         1522      1522           
=========================================
  Hits          1522      1522           

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