feat(instrumentation-mongoose): Support v9

[Farhan-Abbas]

Which problem is this PR solving?

Fixes #3285. This PR adds support for mongoose@9 to the @opentelemetry/instrumentation-mongoose package.

Short description of the changes

Breaking Changes

None. The core instrumentation code itself required no changes - only version ranges were updated to <10.

However, Mongoose@9's internal changes required some changes to our tests and the TypeScript configuration.

Here's a quick summary of all the changes:

Version Range Updates

• Updated supported version range from >=5.9.7 <9 to >=5.9.7 <10 in:
  • src/mongoose.ts (instrumentation module definition)
  • README.md (documentation)
  • package.json (devDependencies updated to mongoose@9.1.5)

Testing Configuration

• Test All Versions (.tav.yml): Split mongoose v8 and v9 into separate test entries
  • mongoose@8: Node.js >= 16.20.1
  • mongoose@9: Node.js >= 18.0.0 (mongoose@9 requires Node.js 18+)
• Test Files: Renamed mongoose-v7-v8.test.ts → mongoose-v7-v9.test.ts
• Test Scripts: Updated test-v7-v8 → test-v7-v9 in package.json

TypeScript Compatibility

• tsconfig.json: Added skipLibCheck: true to handle mongoose@9's excessively deep type instantiation issues (TS2589)
• test/user.ts: Updated User model export with type assertion to work around mongoose@9 type complexity

Test Adjustments

• mongoose-common.test.ts:
  • Simplified assertion for Document.prototype.updateOne() test - mongoose@9 returns empty objects for condition/updates/options in the serialized statement for document-level operations
  • Added as any type assertion to updateOne test to avoid TypeScript errors
  • Added explanatory comments for mongoose@9 behavioral changes