Update @rollup/pluginutils for rollup v3 support #127
Description
└─┬ rollup-plugin-sourcemaps 0.6.3
└─┬ @rollup/pluginutils 3.1.0
└── ✕ unmet peer rollup@^1.20.0||^2.0.0: found 3.8.0
{{ message }}
└─┬ rollup-plugin-sourcemaps 0.6.3
└─┬ @rollup/pluginutils 3.1.0
└── ✕ unmet peer rollup@^1.20.0||^2.0.0: found 3.8.0