Update hallmark requirement from ^3.0.0 to ^3.1.0

[dependabot]

Updates the requirements on hallmark to permit the latest version.

Release notes

Sourced from hallmark's releases.

v3.1.0

Added

• Add bump command to add a new version to changelog (9e2b53b)
  • As an example, hallmark bump minor added this 3.1.0 entry, prepopulated with git commits ✨
  • We now also support hallmark lint and hallmark fix as commands, which going forward are preferred over hallmark and hallmark --fix respectively
• Export programmatic API (3dc1c87, 6867517, d67f191)
  • Used by hallmark-lint-action ✨
• Add remark-autolink-references (6e36fda)
  • Transform references like JIRA-123 into links ✨
• Fallback to git remote to get repository url (dbbe165)
• Support .hallmarkrc as alternative to package.json (6469e03, fe50723)
  • Hallmark can now be used on non-node projects ✨

Changelog

Sourced from hallmark's changelog.

[3.1.0] - 2020-11-14

Added

• Add bump command to add a new version to changelog (9e2b53b)
  • As an example, hallmark bump minor added this 3.1.0 entry, prepopulated with git commits ✨
  • We now also support hallmark lint and hallmark fix as commands, which going forward are preferred over hallmark and hallmark --fix respectively
• Export programmatic API (3dc1c87, 6867517, d67f191)
  • Used by hallmark-lint-action ✨
• Add remark-autolink-references (6e36fda)
  • Transform references like JIRA-123 into links ✨
• Fallback to git remote to get repository url (dbbe165)
• Support .hallmarkrc as alternative to package.json (6469e03, fe50723)
  • Hallmark can now be used on non-node projects ✨

[3.0.0] - 2020-08-22

Changed

• Breaking: drop node < 10 and upgrade dependencies (02e7c00). Now silently exits on node < 10. Two dozen remark modules have been upgraded, many with breaking changes though most don't apply here. One thing I've noticed is that text like module@1.0.0 will be converted to a mailto link. Wrap such text in backticks.
• Breaking: remove depth limit on table of contents (031a6ae)
• Bump remark-changelog (4868875). Adds experimental git submodule support.

Added

• Support passing options to remark-changelog (6a3923e).

[2.1.0] - 2020-05-06

Added

• Add options to specify extra plugins (e43475c)

Fixed

• Skip testing airtap (#45) (f6c44f9)

[2.0.0] - 2019-09-06

Changed

• Skip running on node < 8 (e804671)
• Upgrade standard devDependency from ^13.0.1 to ^14.0.0 (#35)
• Upgrade rimraf devDependency from ^2.6.3 to ^3.0.0 (#34)

Added

• Breaking: add remark-changelog (#37, #44, 6a793f6, 057fddb)
• Allow disabling automatic table of contents (cee5001)
• Allow disabling table padding (3210a96)

... (truncated)

Commits

• 5dd70c3 3.1.0
• 23fc15a Prepare 3.1.0
• 6e36fda Add remark-autolink-references
• 9ae5435 Remove node 8 from travis
• 6867517 Add basic api test
• d67f191 Add promise support to api
• fe50723 Document .hallmarkrc and changelog options
• 9e2b53b Add bump command to add a new version to changelog
• 6469e03 Support .hallmarkrc
• 3dc1c87 Export programmatic API
• Additional commits viewable in compare view

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[feross]

@vweevers I forgot that it was possible to use hallmark to generate the changelog -- we're currently only using it on the AUTHORS.md file. I'd like to use it on the changelog too. If you have a free second, would you mind sending a PR to show us the optimal configuration of that?

[vweevers]

@feross How would you like to handle headings? Atm hallmark rejects headings other than Changed, Added, Deprecated, Removed, Fixed, Security. The standard changelog has New features, Changed features, New rules, Changed rules.

[feross]

New features -> Added
Changed features -> Changed
Changed rules -> Removed

Unclear what to do with New rules. Maybe it should be merged with the New features in the Added section? However, I kind of like the separation of features and rules.

Is it possible to have extra suffixes on the headings? E.g. Added (features) and Added (rules). Open to ideas.

[vweevers]

Subheadings are allowed (hallmark doesn't lint the content below the 3rd-level headings) so how about:

### Added

- Support the `.gitignore` ignore syntax from the command line

#### New rules

- Require let or const instead of var

[feross]

Oh that would work!