[Security] Bump ssri from 5.0.0 to 5.3.0

[dependabot-preview]

Bumps ssri from 5.0.0 to 5.3.0. This update includes a security fix.

Vulnerabilities fixed

Sourced from The GitHub Security Advisory Database.

Moderate severity vulnerability that affects ssri
index.js in the ssri module before 5.2.2 for Node.js is prone to a regular expression denial of service vulnerability in strict mode functionality via a long base64 hash string.

Affected versions: < 5.2.2

Changelog

Sourced from ssri's changelog.

5.3.0 (2018-03-13)

Features

• checkData: optionally throw when checkData fails (bf26b84)

5.2.4 (2018-02-16)

5.2.3 (2018-02-16)

Bug Fixes

• hashes: filter hash priority list by available hashes (2fa30b8)
• integrityStream: dedupe algorithms to generate (d56c654)

5.2.2 (2018-02-14)

Bug Fixes

• security: tweak strict SRI regex (#10) (d0ebcdc)

5.2.1 (2018-02-06)

5.2.0 (2018-02-06)

Features

• match: add integrity.match() (3c49cc4)

... (truncated)

Commits

• 0ae0c23 chore(release): 5.3.0
• bf26b84 feat(checkData): optionally throw when checkData fails
• d0f7429 chore(release): 5.2.4
• 38878b7 docs: integrityStream docs were wrong
• 5e6fcee chore(release): 5.2.3
• 58b8cfe test: use strict for test/create.js
• 2fa30b8 fix(hashes): filter hash priority list by available hashes
• d56c654 fix(integrityStream): dedupe algorithms to generate
• e3845d5 test: add tests for integrity-stream
• 0fb45e7 chore(release): 5.2.2
• Additional commits viewable in compare view

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