fix(core): Lazy-load express-openapi-validator to reduce initial memory spike (no-changelog)

[netroy]

No description provided.

[github-actions]

Great PR! Please pay attention to the following items before merging:

Files matching packages/**:

• If fixing bug, added test to cover scenario.
• If addressing forum or Github issue, added link to description.

Files matching packages/**/*.ts:

• Added unit tests to cover new or updated functionality.

Make sure to check off this list before asking for review.

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: -0.01% ⚠️

Comparison is base (0036a47) 31.90% compared to head (56e6cbf) 31.90%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7111      +/-   ##
==========================================
- Coverage   31.90%   31.90%   -0.01%     
==========================================
  Files        3268     3268              
  Lines      197657   197657              
  Branches    21528    21523       -5     
==========================================
- Hits        63058    63056       -2     
- Misses     133561   133563       +2     
  Partials     1038     1038              

Files Changed	Coverage Δ
packages/cli/src/PublicApi/index.ts	85.96% <100.00%> (ø)

... and 3 files with indirect coverage changes

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[github-actions]

⚠️ Some Cypress E2E specs are failing, please fix them before merging

[cypress]

1 failed test on run #2102 ↗︎

1

237

0

0

0

Details:

🌳 lazy-load-express-openapi-validator 🖥️ browsers:node18.12.0-chrome107 🤖 net...
Project: n8n	Commit: 56e6cbf63e
Status: Failed	Duration: 08:24 💡
Started: Sep 5, 2023 12:30 PM	Ended: Sep 5, 2023 12:39 PM

  cypress/e2e/17-workflow-tags.cy.ts • 1 failed test

View Output Video

Test		Artifacts
Workflow tags > should update a tag via modal		Output Screenshots Video

_{This comment has been generated by cypress-bot as a result of this project's GitHub integration settings.}

[janober]

Got released with n8n@1.6.0