Rewrite vertical_whitespace rule using SwiftSyntax

[marcelofabri]

No description provided.

[SwiftLintBot]

	3 Warnings
⚠️	If this is a user-facing change, please include a CHANGELOG entry to credit yourself! You can find it at CHANGELOG.md.
⚠️	This PR may need tests.
⚠️	This PR introduced a violation in Swift: /opt/homebrew/var/buildkite-agent/builds/SwiftLint-CI-4/swiftlint/swif

	21 Messages
📖	Linting Aerial with this PR took 0.16s vs 0.27s on main (40% faster)
📖	Linting Alamofire with this PR took 0.09s vs 0.3s on main (70% faster)
📖	Linting Brave with this PR took 0.36s vs 1.71s on main (78% faster)
📖	Linting DuckDuckGo with this PR took 0.34s vs 0.9s on main (62% faster)
📖	Linting Firefox with this PR took 0.34s vs 1.63s on main (79% faster)
📖	Linting Kickstarter with this PR took 0.38s vs 1.81s on main (79% faster)
📖	Linting Moya with this PR took 0.14s vs 0.17s on main (17% faster)
📖	Linting NetNewsWire with this PR took 0.18s vs 0.65s on main (72% faster)
📖	Linting Nimble with this PR took 0.12s vs 0.23s on main (47% faster)
📖	Linting PocketCasts with this PR took 0.32s vs 1.55s on main (79% faster)
📖	Linting Quick with this PR took 0.09s vs 0.14s on main (35% faster)
📖	Linting Realm with this PR took 0.4s vs 1.07s on main (62% faster)
📖	Linting Sourcery with this PR took 0.23s vs 0.54s on main (57% faster)
📖	Linting Swift with this PR took 0.99s vs 1.23s on main (19% faster)
📖	Linting VLC with this PR took 0.14s vs 0.34s on main (58% faster)
📖	Linting Wire with this PR took 0.65s vs 3.82s on main (82% faster)
📖	Linting WordPress with this PR took 0.57s vs 2.58s on main (77% faster)
📖	This PR fixed a violation in Swift: /benchmark/single-source/StringWalk.swift:1289:1: warning: Vertical Whitespace Violation: Limit vertical whitespace to a single empty line; currently 4 (vertical_whitespace)
📖	This PR fixed a violation in Swift: /benchmark/single-source/StringWalk.swift:1304:1: warning: Vertical Whitespace Violation: Limit vertical whitespace to a single empty line; currently 2 (vertical_whitespace)
📖	This PR fixed a violation in Swift: /benchmark/single-source/StringWalk.swift:1319:1: warning: Vertical Whitespace Violation: Limit vertical whitespace to a single empty line; currently 2 (vertical_whitespace)
📖	This PR fixed a violation in Swift: /benchmark/single-source/StringWalk.swift:1378:1: warning: Vertical Whitespace Violation: Limit vertical whitespace to a single empty line; currently 4 (vertical_whitespace)

Here's an example of your CHANGELOG entry:

* Rewrite vertical_whitespace rule using SwiftSyntax.  
  [marcelofabri](https://github.com/marcelofabri)
  [#issue_number](https://github.com/realm/SwiftLint/issues/issue_number)

note: There are two invisible spaces after the entry's text.

Generated by 🚫 Danger