Bump loader-utils and react-scripts in /loading-progress-example#49

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dependabot/npm_and_yarn/loading-progress-example/loader-utils-and-react-scripts-2.0.3jciccio/react-loading-progress:dependabot/npm_and_yarn/loading-progress-example/loader-utils-and-react-scripts-2.0.3Copy head branch name to clipboard