Bump knex from 0.19.5 to 2.4.0 in /js_postgresql_with_knex/migrating_tables#52

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dependabot/npm_and_yarn/js_postgresql_with_knex/migrating_tables/knex-2.4.0CodeCoreYVR/Labs_Bootcamp_March_2020:dependabot/npm_and_yarn/js_postgresql_with_knex/migrating_tables/knex-2.4.0Copy head branch name to clipboard