build(deps): bump lodash.template and grunt-conventional-changelog

Bumps [lodash.template](https://github.com/lodash/lodash) to 4.5.0 and updates ancestor dependency [grunt-conventional-changelog](https://github.com/btford/grunt-conventional-changelog). These dependencies need to be updated together.


Updates `lodash.template` from 3.6.2 to 4.5.0
- [Release notes](https://github.com/lodash/lodash/releases)
- [Commits](https://github.com/lodash/lodash/commits/4.5.0)

Updates `grunt-conventional-changelog` from 5.0.0 to 6.1.0
- [Release notes](https://github.com/btford/grunt-conventional-changelog/releases)
- [Changelog](https://github.com/btford/grunt-conventional-changelog/blob/master/CHANGELOG.md)
- [Commits](btford/grunt-conventional-changelog@v5.0.0...v6.1.0)

---
updated-dependencies:
- dependency-name: lodash.template
  dependency-type: indirect
- dependency-name: grunt-conventional-changelog
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]