[Snyk] Security upgrade mongoose from 5.10.5 to 5.11.7

[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:
  • backend/package.json
  • backend/package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	651/1000 Why? Recently disclosed, Has a fix available, CVSS 7.3	Prototype Pollution SNYK-JS-MQUERY-1050858	No	No Known Exploit

(*) 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.

• d7fc59c chore: release 5.11.7
• d318339 fix(index.d.ts): make `Document#id` optional so types that use `id` can use `Model<IMyType & Document>`
• a9b317a chore: upgrade mquery -> 3.2.3
• 43f88db fix(document): ensure calling `get()` with empty string returns undefined for mongoose-plugin-autoinc
• 369efe1 Merge pull request #9692 from sahasayan/patch-4
• f879c4d chore: update opencollective sponsors
• 1be4d87 fix(model): set `isNew` to false for documents that were successfully inserted by `insertMany` with `ordered = false` when an error occurred
• b2da840 test(model): repro #9677
• 15d6660 fix(index.d.ts): add missing Aggregate#skip() & Aggregate#limit()
• dd348b1 chore: release 5.11.6
• 3ec01fa fix(index.d.ts): allow calling `mongoose.model()` and `Connection#model()` with model as generic param
• ccfa041 Merge pull request #9686 from cjroebuck/patch-1
• 7a52e45 Merge pull request #9685 from sahasayan/patch-3
• a5c98c2 Allow array of validators in SchemaTypeOptions
• 48907ea fix(index.d.ts): allow 2 generic types in mongoose.model function
• a17a2c3 Merge pull request #9683 from isengartz/master
• 61595f0 fix(index.d.ts): allow passing ObjectId properties as strings to `create()` and `findOneAndReplace()`
• 8e20ee6 optional next() parameter for post middleware
• 8a52485 Merge pull request #9680 from orgads/aggregate
• 1ef8274 fix(middleware): ensure sync errors in pre hooks always bubble up to the calling code
• 067e3a2 fix(index.d.ts): Fix return type of Model#aggregate()
• 0e2058d chore: release 5.11.5
• 6d9fb4d fix(index.d.ts): add missing `SchemaTypeOpts` and `ConnectionOptions` aliases for backwards compat
• a85adb9 test: fix tests re: #9669

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