build(deps): bump mammoth from 1.12.3 to 1.13.0

[dependabot]

Bumps mammoth from 1.12.3 to 1.13.0.

Changelog

Sourced from mammoth's changelog.

1.13.0

• Replace the use of bluebird with native promises.

  This is arguably a breaking change: however, the return value of functions such as convertToHtml() was only documented as a promise, rather than as a bluebird promise.

  The only exception is that the docs previously used .done(): therefore, when returning promises from the API to external users, a done method is added.

  Any callers that rely on bluebird promises can convert the returned promise into a bluebird promise using bluebird.Promise.resolve().

• Read the children of w:customXml elements.

• Handle paragraphs and runs that have been moved and tracked as a revision.

• Improve escaping in Markdown writer. This avoids some cases where source documents could inject arbitrary HTML into the converted document.

Commits

• 791a189 Bump version to 1.13.0
• 4abdfe2 Clarify implication of markdown escaping
• 8e6e755 Escape markdown image alt text and src
• 9463f5c Escape markdown link hrefs
• d302d07 Escape HTML IDs in markdown writer
• 671dbb6 Handle paragraphs and runs that have been moved and tracked as a revision
• d157374 Read the children of w:customXml elements
• 2a489fb Mark up code fragment in README
• adc5749 Update dingbat-to-unicode to 1.0.2
• c0dce8c Remove dependency on path-is-absolute
• Additional commits viewable in compare view

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