[Security] Update terser webpack plugin

[RDIL]

Updates the terser webpack plugin.
Fixes#8100

[heyimalex]

For context:

• GHSA-h9rv-jmmf-4pgx
• we pin terser-webpack-plugin at 2.2.1
• terser-webpack-plugin 2.2.1 depends on serialize-javascript ^1.7.0
• vulnerability was fixed in serialize-javascript 2.1.1

So we either bump or wait for serialize-javascript to backport a security fix to the 1.x branch. The issue doesn't really affect us since there's no xss at build time, but people complain in the tracker either way.

[andriijas]

@RDIL Want to upgrade to 2.2.3 in this PR? Don't forget react-error-overlay Thanks