Bump lodash from 4.17.15 to 4.17.21 in /content/docs-site#52

dependabot[bot] wants to merge 1 commit intomasterapache/singa-site:masterfrom

dependabot/npm_and_yarn/content/docs-site/lodash-4.17.21apache/singa-site:dependabot/npm_and_yarn/content/docs-site/lodash-4.17.21Copy head branch name to clipboard