build(deps): bump ajv from 6.10.0 to 6.12.6 in /packages/superset-ui-plugins-demo#20

dependabot[bot] wants to merge 1 commit intomasterpreset-io/superset-ui-plugins:masterfrom

dependabot/npm_and_yarn/packages/superset-ui-plugins-demo/ajv-6.12.6preset-io/superset-ui-plugins:dependabot/npm_and_yarn/packages/superset-ui-plugins-demo/ajv-6.12.6Copy head branch name to clipboard