[Snyk] Security upgrade mongoose from 5.3.8 to 5.13.20

[atian25]

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: - package.json #### Vulnerabilities that will be fixed ##### With an upgrade: Severity | Priority Score (*) | Issue | Breaking Change | Exploit Maturity :-------------------------:|-------------------------|:-------------------------|:-------------------------|:-------------------------  | **798/1000**
**Why?** Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 8.1 | Prototype Pollution
[SNYK-JS-MONGOOSE-5777721](https://snyk.io/vuln/SNYK-JS-MONGOOSE-5777721) | No | Proof of Concept (*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: mongoose

The new version differs by 250 commits.

• 0f3997a chore: release 5.13.20
• f1efabf fix: avoid prototype pollution on init
• 98e0762 chore: release 5.13.19
• 7e36d21 chore: release 5.13.18
• 6759c60 undo accidental changes and actually pin @ types/json-schema
• 4ed4a89 chore: pin version of @ types/json-schema because of install issues on node v4 and v6
• 9a9536d Merge pull request #13535 from lorand-horvath/patch-12
• 26424d5 5.x - bump mongodb driver to 3.7.4
• 4b8b0a9 add versionNumber to 5.x
• 1bc07ec chore: release 5.13.17
• 3f827b3 Merge branch '5.x' of github.com:Automattic/mongoose into 5.x
• eeabe5f chore: run CI tests on ubuntu 20.04 because 18.04 no longer supported
• 14464d1 Merge pull request #13195 from raj-goguardian/gh-13192
• 7e888e4 fix(update): handle $and & $or in array filters.
• 5dd0a4e Merge pull request #13138 from rdeavila94/gh-13136
• c8191da Update model.indexes.test.js
• 7364264 Update model.indexes.test.js
• 77b9d99 Updated the isIndexEqual function to take into account non-text indexes when checking compound indexes that include both text and non-text indexes
• 9dd82be Merge pull request #13132 from rdeavila94/gh-12654
• d0e149b Merge pull request #12737 from Automattic/vkarpov15/gh-12654
• e76c41c chore: release 5.13.16
• cdab11e chore: remove Node 5 and 7 from CI because GitHub actions is bugging out with them
• e33a8be fix(types): add missing typedefs for bulkSave() to 5.x
• 896cd76 Merge pull request #12692 from hasezoey/backportLinkUpdate

See the full diff

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