Update dependency core-js to v2.6.11

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
core-js	devDependencies	patch	2.6.5 -> 2.6.11

---

Release Notes

zloirock/core-js

v2.6.11

Compare Source

• Returned usage of node -e in the postinstall scripts for better cross-platform compatibility, #​582
• Improved CI detection in the postinstall script, #​707

v2.6.10

Compare Source

• Show similar postinstall messages only once per npm i, #​597

v2.6.9

Compare Source

• Some fixes and improvements of the postinstall script like support npm color config (#​556) or adding support of ADBLOCK env variable

v2.6.8

Compare Source

• Added a workaround of a strange npx bug on postinstall, #​551

v2.6.7

Compare Source

• Added one more workaround of alternative not completely correct Symbol polyfills, #​550, #​554

v2.6.6

Compare Source

• Fixed IE8- non-enumerable properties support in Object.{ assign, entries, values }, #​541
• Fixed support of primitives in Object.getOwnPropertySymbols in Chrome 38 / 39, #​539
• Show a message on postinstall

---

Renovate configuration

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

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 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 WhiteSource Renovate. View repository job log here.

[renovate]

Branch automerge failure

This PR was configured for branch automerge, however this is not possible so it has been raised as a PR instead.

---

• Branch has one or more failed status checks