Use runtime version from manifest

Author: eps1lon

packages/next/build/babel/preset.ts

@@ -157,8 +157,7 @@ module.exports = (
           helpers: true,
           regenerator: true,
           useESModules: supportsESM && presetEnvConfig.modules !== 'commonjs',
-          // the lower of the entries in package.json for `@babel/rutime` and `@babel/runtime-corejs2`
-          version: '7.7.2',
+          version: require('@babel/runtime-corejs2/package.json').version,
           absoluteRuntime: (process.versions as any).pnp
             ? __dirname
             : undefined,