Replace deprecated node packages

From a recent `npm install`:
npm WARN deprecated...

* `chokidar@1.7.0`: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
* `chokidar@2.1.8`: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
* `core-js@2.6.11`: core-js@<3 is no longer maintained and not recommended for usage due to the number of issues. Please, upgrade your dependencies to the actual version of core-js@3.
* `fsevents@1.2.13`: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
* `har-validator@5.1.5`: this library is no longer supported
* `mkdirp-promise@5.0.1`: This package is broken and no longer maintained. 'mkdirp' itself supports promises now, please switch to that.
* `node-uuid@1.4.8`: Use uuid module instead
* `object-keys@0.2.0`: Please update to the latest object-keys
* `request@2.88.2`: request has been deprecated, see https://github.com/request/request/issues/3142
* `resolve-url@0.2.1`: https://github.com/lydell/resolve-url#deprecated
* `rollup-plugin-commonjs@10.1.0`: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-commonjs.
* `rollup-plugin-json@4.0.0`: This module has been deprecated and is no longer maintained. Please use @rollup/plugin-json.
* `rollup-plugin-node-resolve@5.2.0`: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-node-resolve.
* `urix@0.1.0`: Please see https://github.com/lydell/urix#deprecated

Additional package issues due to peer dependencies on out-of-date versions:
* `@semantic-release/commit-analyzer@6.3.3` requires a peer of semantic-release@>=15.8.0 <16.0.0 but none is installed. *(we use semantic-release@17.2.1)*
* `tslint-eslint-rules@5.4.0` requires a peer of typescript@^2.2.0 || ^3.0.0 but none is installed. *(we use typescript@4.0.3)*
* Unsupported engine for `acetate-cli@1.0.1`: wanted: {"node":"~6.0.0"} (current: {"node":"12.18.3","npm":"6.14.6"})