Add parentheses to corrected opaque and existential optionals

[SimplyDanny]

Fixes #5277.

[SwiftLintBot]

	17 Messages
📖	Linting Aerial with this PR took 1.21s vs 1.2s on main (0% slower)
📖	Linting Alamofire with this PR took 1.58s vs 1.58s on main (0% slower)
📖	Linting Brave with this PR took 9.02s vs 8.97s on main (0% slower)
📖	Linting DuckDuckGo with this PR took 4.47s vs 4.47s on main (0% slower)
📖	Linting Firefox with this PR took 10.49s vs 10.51s on main (0% faster)
📖	Linting Kickstarter with this PR took 11.09s vs 11.03s on main (0% slower)
📖	Linting Moya with this PR took 0.63s vs 0.63s on main (0% slower)
📖	Linting NetNewsWire with this PR took 3.3s vs 3.29s on main (0% slower)
📖	Linting Nimble with this PR took 0.83s vs 0.83s on main (0% slower)
📖	Linting PocketCasts with this PR took 8.77s vs 8.77s on main (0% slower)
📖	Linting Quick with this PR took 0.4s vs 0.4s on main (0% slower)
📖	Linting Realm with this PR took 11.51s vs 11.53s on main (0% faster)
📖	Linting Sourcery with this PR took 2.83s vs 2.83s on main (0% slower)
📖	Linting Swift with this PR took 5.3s vs 5.3s on main (0% slower)
📖	Linting VLC with this PR took 1.56s vs 1.57s on main (0% faster)
📖	Linting Wire with this PR took 19.57s vs 19.55s on main (0% slower)
📖	Linting WordPress with this PR took 13.35s vs 13.29s on main (0% slower)

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