[Snyk] Security upgrade mongoose from 5.10.5 to 5.12.2

[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
	673/1000 Why? Proof of Concept exploit, Recently disclosed, Has a fix available, CVSS 5.6	Prototype Pollution SNYK-JS-MONGOOSE-1086688	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.

• 5549f26 chore: release 5.12.2
• 4b1aaac Merge pull request #10050 from SoftwareSing/fix-bulkwrite-with-timestamps-false
• 3759f34 chore: address CR comments
• 5ffbb8e fix(query): apply schema-level `select` option from array schematypes
• 7d19c9f test(query): repro #10029
• 4b0052e fix(schema): support setting `ref` as an option on an array SchemaType
• 171c31f test(schema): repro #10029
• 96f7905 fix(index.d.ts): make query methods return `QueryWithHelpers` so query helpers pass through chaining
• 04f880f fix(index.d.ts): add back `Aggregate#project()` types that were mistakenly removed in 5.12.0
• 9a3a7b4 style: fix lint
• 91f003a Merge pull request #10053 from 418sec/1-npm-mongoose
• 3ed44ff Merge pull request Fonts not being rendered properly in screenshots #1 from zpbrent/patch-2
• 00e059d fix(index.d.ts): add `upserted` array to `updateOne()`, `updateMany()`, `update()` result
• 003e477 add missing issue number
• 0101ab8 fix(bulkwrite): make bulkWrite can work with `timestamps: false`
• 9559c46 test(bulkwrite): repro #10048
• 1bb97ba chore: update opencollective sponsors
• 5888269 docs(mongoose+browser): fix broken links to info about `mongoose.Types`
• 43b0cfa Merge branch 'master' of github.com:Automattic/mongoose
• 03905c5 fix(index.d.ts): always allow setting `type` in Schema to a SchemaType class or a Schema instance
• 422620b Merge pull request #10015 from Automattic/gh-9982
• 7b14258 test(QueryCursor): fix tests from #10015
• f2651d7 docs(transactions): introduce `session.withTransaction()` before `session.startTransaction()` because `withTransaction()` is the recommended approach
• 61d313b chore: update opencollective sponsor logo

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