[deps]: Update nicklockwood/SwiftFormat to v0.55.6 (#1575)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Katherine Bertelsen <kbertelsen@bitwarden.com>

Author: renovate[bot]

Mintfile

@@ -1,5 +1,5 @@
 mono0926/LicensePlist@3.27.1
-nicklockwood/SwiftFormat@0.55.5
+nicklockwood/SwiftFormat@0.55.6
 SwiftGen/SwiftGen@6.6.3
 realm/SwiftLint@0.59.1
 yonaskolb/xcodegen@2.43.0