upgrade to @surma/rollup-plugin-off-main-thread dependencies from 1.4.1 to 2.2.2 (#2927)

[fuzail-ahmed]

upgrade to @surma/rollup-plugin-off-main-thread dependencies from 1.4.1 to 2.2.2 (#2927)

Fixes #2927
updated @surma/rollup-plugin-off-main-thread to use the new ejs version 3.1.6

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[fuzail-ahmed]

@ViPai82, @jeffposnick Please review

[jeffposnick]

Thanks for the PR; I was unaware that there was already a version of OMT out that had the updated deps.

However, i think there might be some breaking changes in OMT that make this more of an involved update beyond just changing package.json, as our test suite is now failing:

https://github.com/GoogleChrome/workbox/pull/2962/checks?check_run_id=3928423296#step:7:331

Let me know if you feel comfortable investigating that further; otherwise, I'm happy to take this over.

[jeffposnick]

I'd like to get this merged so that we can include it in our upcoming v6.4.0 release. I'm going to assume you won't mind if I force-push a fix to your branch.

[jeffposnick]

The PR is now failing on Node v10 (which we still support in Workbox v6) because of the use of matchAll() in @surma/rollup-plugin-off-main-thread dependencies.

That module doesn't advertise a minimum required version of Node, and I'm not sure whether this was an intentional breaking change or not. I'll see if @surma is open to swapping out that method for something compatible with Node v10.

[jeffposnick]

See surma/rollup-plugin-off-main-thread#49

[jeffposnick]

Okay, the dependencies are in good shape now. Thanks!