[v1.3.0] Support for Ghost 5

What's Changed

• Bump qs from 6.5.2 to 6.5.3 by @dependabot in #38
• Bump nanoid from 3.1.30 to 3.2.0 by @dependabot in #33
• Bump copy-props from 2.0.4 to 2.0.5 by @dependabot in #34
• Bump ajv from 6.10.0 to 6.12.6 by @dependabot in #35
• Bump minimist from 1.2.0 to 1.2.6 by @dependabot in #36
• Bump decode-uri-component from 0.2.0 to 0.2.2 by @dependabot in #37
• Bump minimatch from 3.0.4 to 3.1.2 by @dependabot in #40
• Ghost 5 migration by @niharsawant in #39

Full Changelog: v1.2.2...v1.3.0