Update dependency terser-webpack-plugin to v2.2.0

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
terser-webpack-plugin	devDependencies	minor	2.1.3 -> 2.2.0

---

Release Notes

webpack-contrib/terser-webpack-plugin

v2.2.0

Compare Source

Features

• map webpack@5 options to terser options (#​177) (f4c47aa)
• pass an asset path for the warningsFilter option (#​176) (9a0a575)
• propagate an error stacktrace from terser (#​179) (a11e66b)
• enable the sourceMap option when the SourceMapDevToolPlugin plugin used (non cheap) (#​178) (d01c1b5)

Bug Fixes

• get rid deprecation warnings for webpack@5 (#​180) (504ea8b)

2.1.3 (2019-10-10)

Bug Fixes

• invalidate cache when a file name was changed (#​171) (7e1d370)

2.1.2 (2019-09-28)

Bug Fixes

• regexp for some comments (#​168) (4c4b1f1)

2.1.1 (2019-09-27)

Bug Fixes

• logic for extracting and preserving comments (#​166) (6bdee64)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR becomes conflicted, or if you modify the PR title to begin with "rebase!".

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Renovate Bot. View repository job log here.

[coveralls]

Pull Request Test Coverage Report for Build 2252

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

---

Totals
Change from base Build 2250:	0.0%
Covered Lines:	97
Relevant Lines:	97

---

💛 - Coveralls