Update dependency eslint-plugin-prettier to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change	References
eslint-plugin-prettier	devDependencies	major	2.7.0 -> 3.0.0	source

---

Release Notes

prettier/eslint-plugin-prettier

v3.0.0

Compare Source

• Chore: Add eslint peer-dependency (d55d79c)
• Breaking: Extract showInvisibles and generateDifferences (bf7c40c)
• Breaking: Defining prettier options must use an object (478c7e5)
• Breaking: Drop support for ESLint v3 and v4 (2326231)
• Chore: Update dependencies (1ec94c8)
• Chore: remove two unused dependencies (bfe459c)
• Chore: Rename test files to keep them sequential (d38ea52)
• Breaking: Remove pragma support (3af422c)
• Breaking: Update minimum required pretter version to 1.13.0 (29c0506)
• Breaking: Drop support for node v4, v7 and v9 (be460bd)
• Chore: Add vscode config to autoformat on save (9fac6b4)
• Chore: Improve travis matrix (46d2444)
• Chore: Add format script to run prettier (d46aa6d)

---

Renovate configuration

📅 Schedule: 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.

---

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

[coveralls]

Pull Request Test Coverage Report for Build 244

• 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 242:	0.0%
Covered Lines:	52
Relevant Lines:	52

---

💛 - Coveralls