Replace dependency rollup-plugin-terser with @rollup/plugin-terser ^0.1.0

[mend-for-github-com]

This PR contains the following updates:

Package	Type	Update	Change
rollup-plugin-terser → @rollup/plugin-terser	devDependencies	replacement	^7.0.2 → ^0.1.0

This is a special PR that replaces rollup-plugin-terser with the community suggested minimal stable replacement version.

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