perf(image): speed up runtime

[joundso]

removed entrypoint.sh and speeded up runtime by pre-installing requirements in the image build process

Types of changes

• Refactoring (no functional changes, no api changes)

Checklist

• [x] Code follows the code style of this project.
• [x] Changes follow the CONTRIBUTING guidelines.
• [x] Update necessary documentation accordingly.
• [x] Lint and tests pass locally with the changes.
• [x] Check issues and pull requests first. You don't want to duplicate effort.

[codecov[bot]]

Codecov Report

Patch and project coverage have no change.

Comparison is base (2508941) 24.86% compared to head (f8baaf3) 24.86%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #109 +/- ## ======================================= Coverage 24.86% 24.86% ======================================= Files 2 2 Lines 382 382 ======================================= Hits 95 95 Misses 287 287 ```

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[BobAnkh]

@joundso Thanks! This optimization is awesome.