fix(utils): fix 'Properties descriptionData are unknown' with webpack5
fix(utils): fix 'Properties descriptionData are unknown' with webpack5

Webpack5 as used by GatsbyJS gets cranky when the `descriptionData` attribute from assorted rules
(like its stock JS processing) isn't consumed during a compile pass. Adding this rule plugin
resolves this issue.

kisenka/webpack-svg-sprite-loader,kisenka/svg-sprite-loader