Bump acorn from 6.1.1 to 6.4.1 in /demo-server/src/main/resources/static#7

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dependabot/npm_and_yarn/demo-server/src/main/resources/static/acorn-6.4.1kaifox/client-server-demo:dependabot/npm_and_yarn/demo-server/src/main/resources/static/acorn-6.4.1Copy head branch name to clipboard