Update dependency mongodb to v3.1.13

[dev-mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
mongodb	dependencies	patch	3.1.4 -> 3.1.13

By merging this PR, the below vulnerabilities will be automatically resolved:

Severity	CVSS Score	Vulnerability	Reachability
Critical	9.8	CVE-2020-7610
Medium	6.5	WS-2019-0311

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Release Notes

mongodb/node-mongodb-native (mongodb)

v3.1.13

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Bug Fixes

• restore ability to webpack by removing makeLazyLoader (050267d)
• bulk: honor ignoreUndefined in initializeUnorderedBulkOp (e806be4)
• changeStream: properly handle changeStream event mid-close (#​1902) (5ad9fa9)
• db_ops: ensure we async resolve errors in createCollection (210c71d)

v3.1.12

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Features

• core: update to mongodb-core v3.1.11 (9bef6e7)

v3.1.11

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Bug Fixes

• bulk: fix error propagation in empty bulk.execute (a3adb3f)
• bulk: make sure that any error in bulk write is propagated (bedc2d2)
• bulk: properly calculate batch size for bulk writes (aafe71b)
• operations: do not call require in a hot path (ff82ff4)

v3.1.10

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Bug Fixes

• auth: remember to default to admin database (c7dec28)

Features

• core: update to mongodb-core v3.1.9 (bd3355b)

v3.1.9

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Bug Fixes

• db: move db constants to other file to avoid circular ref (#​1858) (239036f)
• estimated-document-count: support options other than maxTimeMs (36c3c7d)

Features

• core: update to mongodb-core v3.1.8 (80d7c79)

v3.1.8

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Bug Fixes

• connect: use reported default databse from new uri parser (811f8f8)

Features

• core: update to mongodb-core v3.1.7 (dbfc905)

v3.1.7

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Features

• core: update mongodb-core to v3.1.6 (61b054e)

v3.1.6

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Features

• core: update to core v3.1.5 (c5f823d)

v3.1.5

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Bug Fixes

• cursor: allow $meta based sort when passing an array to sort() (f93a8c3)
• utils: only set retryWrites to true for valid operations (3b725ef)

Features

• core: bump core to v3.1.4 (805d58a)

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