[PIDM-205] feat(pdf): remove pdf generation and dependencies

[CianoDanilo]

Removed PDF generation and related dependencies

List of Changes

Motivation and Context

PDF generation is an unused feature. Since at the moment the application generates a PDF but does not attach it to the email, we can and should remove the PDF generation in order to lower the API response time and avoid possible OOM errors caused by the creation of many chromium processes (used by puppeteer) under heavy load.

How Has This Been Tested?

Load tests
Completed payment in dev env

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #92   +/-   ##
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  Coverage        ?   87.58%           
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  Files           ?       10           
  Lines           ?      306           
  Branches        ?       39           
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  Hits            ?      268           
  Misses          ?       31           
  Partials        ?        7           

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[pietro-tota]

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[github-actions]

This PR exceeds the recommended size of 400 lines. Please make sure you are NOT addressing multiple issues with one PR. Note this PR might be rejected due to its size.