[Snyk] Upgrade prop-types from 15.7.2 to 15.8.0#89

snyk-bot wants to merge 1 commit intomasteransu5555/pdf-viewer-reactjs:masterfrom

snyk-upgrade-c0d78a317c540c25ca8d36e568f912d3ansu5555/pdf-viewer-reactjs:snyk-upgrade-c0d78a317c540c25ca8d36e568f912d3Copy head branch name to clipboard