chore(deps-dev): bump @babel/preset-env from 7.6.2 to 7.12.7#151

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mastermongodb-js/react-leaflet-heatmap-layer:masterfrom

dependabot/npm_and_yarn/babel/preset-env-7.12.7mongodb-js/react-leaflet-heatmap-layer:dependabot/npm_and_yarn/babel/preset-env-7.12.7Copy head branch name to clipboard