[Snyk] Security upgrade loopback from 2.42.0 to 3.28.0

[snyk-bot]

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:
  • package.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	823/1000 Why? Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 8.6	Command Injection SNYK-JS-NODEMAILER-1038834	Yes	Proof of Concept

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

Commit messages

Package name: loopback

The new version differs by 250 commits.

• a22d4f9 3.28.0
• 223dd5d Merge pull request #4338 from achrinzafork/chore/update-module-lts-node14
• fbd9783 Merge pull request #4340 from strongloop/upgrade-nodemailer
• 6f04b61 upgrade nodemailer to greater than 6.4.16
• ab3e159 chore: sync LoopBack 4 with Node.js v14 EOL
• 5b61efb Merge pull request #4334 from strongloop/travis
• e457e26 chore: add Node.js 14 to travis
• ab2e462 Merge pull request #4318 from strongloop/bajtos-patch-1
• f2f7332 Remove "major" and "p1" from stalebot
• 06fcaa1 3.27.0
• d929b57 Merge pull request #4315 from strongloop/feat/maintenance-lts
• 58f6545 Update LTS status in README
• cdf48b6 Merge pull request #4303 from strongloop/copyright
• f788aae chore: update copyright year
• 6a7fc52 Merge pull request #4290 from sujeshthekkepatt/fix/hasone-relation-error-message
• b93187b feat: change hasone relation error message
• 2db09a3 Merge pull request #4281 from strongloop/chore/improve-issue-templates
• 4edcc4f chore: disable security issue reporting
• b848bd9 Merge pull request #4283 from strongloop/fix-comma-dangle
• aa76a19 chore: fix eslint violations
• f2f0b3a Merge pull request #4267 from strongloop/update-dev-deps
• 82cd668 fixup! manual fixes
• 397d141 fixup! eslint --fix .
• aec86cc chore: update eslint & eslint-config to latest

See the full diff

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