[Snyk] Upgrade prop-types from 15.7.2 to 15.8.1#391

mjperrins wants to merge 1 commit intodev-advancedibm-self-serve-assets/ibm-gsi-cloudnative-journey:dev-advancedfrom

snyk-upgrade-0fc1ac6cec439bd8761a79b5ce338f9eibm-self-serve-assets/ibm-gsi-cloudnative-journey:snyk-upgrade-0fc1ac6cec439bd8761a79b5ce338f9eCopy head branch name to clipboard