[Snyk] Security upgrade gulp from 4.0.2 to 5.0.0

[randytarampi]

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

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • packages/letter/package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	661/1000 Why? Recently disclosed, Has a fix available, CVSS 7.5	Uncontrolled resource consumption SNYK-JS-BRACES-6838727	Yes	No Known Exploit
	661/1000 Why? Recently disclosed, Has a fix available, CVSS 7.5	Inefficient Regular Expression Complexity SNYK-JS-MICROMATCH-6838728	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: gulp

The new version differs by 45 commits.

• 5c4c547 chore: Release 5.0.0 (#2762)
• bf72116 chore: Add index.mjs to files list
• b00de68 feat: Provide an ESM export (#2760)
• 72668c6 chore!: Normalize repository, dropping node <10.13 support (#2758)
• 85896d4 chore(docs): Update stream handbook link (#2711)
• 818bd73 Docs: Remove gulp-sourcemaps because it is built-in (#2592)
• 598f971 Docs: Fix broken link in recipe (#2571)
• 9877de0 Docs: Guide CustomRegistries to maintain properties on tasks (fixes #2561) (#2565)
• f91c388 Docs: Remove typo in custom registry docs (#2543)
• df25250 Docs: Fix typo in task docs (#2524)
• b6d6d7c Docs: fix recipe link (#2526)
• c26ebcb Docs: Cleanup registry error message subtitles
• d51c6eb Docs: Rename the automate releases recipe file
• 4c1bead Docs: Add subtitles for registry error messages (#2502)
• 6e56ed8 Docs: Update and refactor release workflow recipe (#2498)
• 131b702 Docs: Remove recipe for using a config file
• c5ff7e0 Docs: Remove recipe for splitting tasks in files
• 147327c Docs: Remove recipe for specifying a CWD
• 1a653a9 Docs: Remove recipe for running shell commands
• e1190ea Docs: Remove recipe for exporting tasks
• c4305df Docs: Remove recipe for running tasks in series
• 486f927 Docs: Remove recipes for selecting changed files
• b7b70b8 Docs: Fix some links
• 93564bd Docs: Add advanced section for creation of custom registries (#2479)

See the full diff

Check the changes in this PR to ensure they won't cause issues with your project.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.56%. Comparing base (6a3d830) to head (2cc9b53).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #858   +/-   ##
=======================================
  Coverage   92.56%   92.56%           
=======================================
  Files         295      295           
  Lines        2718     2718           
  Branches      306      306           
=======================================
  Hits         2516     2516           
  Misses        163      163           
  Partials       39       39           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[coveralls]

Pull Request Test Coverage Report for Build 9071180603

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 93.074%

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Totals
Change from base Build 2216620861:	0.0%
Covered Lines:	2409
Relevant Lines:	2559

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💛 - Coveralls