Add --disable-sourcekit flag to disable SourceKit

[SimplyDanny]

Resolves #6282.

[SwiftLintBot]

	19 Messages
📖	Building this branch resulted in a binary size of 27224.85 KiB vs 27224.7 KiB when built on main (0% larger).
📖	Linting Aerial with this PR took 0.81 s vs 0.79 s on main (2% slower).
📖	Linting Alamofire with this PR took 1.04 s vs 1.04 s on main (0% slower).
📖	Linting Brave with this PR took 7.22 s vs 6.97 s on main (3% slower).
📖	Linting DuckDuckGo with this PR took 24.21 s vs 22.95 s on main (5% slower).
📖	Linting Firefox with this PR took 11.77 s vs 11.15 s on main (5% slower).
📖	Linting Kickstarter with this PR took 8.13 s vs 7.69 s on main (5% slower).
📖	Linting Moya with this PR took 0.48 s vs 0.47 s on main (2% slower).
📖	Linting NetNewsWire with this PR took 2.49 s vs 2.36 s on main (5% slower).
📖	Linting Nimble with this PR took 0.72 s vs 0.62 s on main (16% slower).
📖	Linting PocketCasts with this PR took 7.43 s vs 7.06 s on main (5% slower).
📖	Linting Quick with this PR took 0.47 s vs 0.43 s on main (9% slower).
📖	Linting Realm with this PR took 3.33 s vs 3.3 s on main (0% slower).
📖	Linting Sourcery with this PR took 1.87 s vs 1.77 s on main (5% slower).
📖	Linting Swift with this PR took 4.46 s vs 4.32 s on main (3% slower).
📖	Linting SwiftLintPerformanceTests with this PR took 0.36 s vs 0.34 s on main (5% slower).
📖	Linting VLC with this PR took 1.17 s vs 1.14 s on main (2% slower).
📖	Linting Wire with this PR took 18.94 s vs 17.6 s on main (7% slower).
📖	Linting WordPress with this PR took 12.36 s vs 11.6 s on main (6% slower).

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[enekox]

Thank you!