fix: SiteCollectionDirectory.Instance to be internal than private #212

Job	Run time
Build on Ubuntu (ubuntu-20.04, 5.7.3)	55s
Build on macOS (macos-12, /Applications/Xcode_13.3.app, 15.4, 8.5, Apple Watch Series 7 - 41mm, i...	6m 57s
Build on Ubuntu (ubuntu-20.04, 5.8.1)	1m 4s
Build on macOS (macos-12, /Applications/Xcode_13.4.1.app, 15.5, 8.5, Apple Watch Series 7 - 41mm,...	6m 49s
Build on Ubuntu (ubuntu-20.04, 5.9)	1m 7s
Build on macOS (macos-12, /Applications/Xcode_14.0.1.app, 16.0, 9.0, Apple Watch Series 8 (41mm),...	12m 39s
Build on Ubuntu (ubuntu-22.04, 5.7.3)	2m 23s
Build on macOS (macos-12, /Applications/Xcode_14.1.app, 16.1, 9.1, Apple Watch Ultra (49mm), iPho...	9m 8s
Build on Ubuntu (ubuntu-22.04, 5.8.1)	1m 5s
Build on macOS (macos-12, /Applications/Xcode_14.2.app, 16.2, 9.1, Apple Watch Ultra (49mm), iPho...	12m 29s
Build on Ubuntu (ubuntu-22.04, 5.9)	1m 9s
Build on macOS (macos-13, /Applications/Xcode_14.3.1.app, 16.4, 9.4, Apple Watch Ultra (49mm), iP...	32m 11s
Build on Ubuntu (ubuntu-20.04, 5.5.3)	1m 5s
Build on macOS (macos-13, /Applications/Xcode_15.0.1.app, 17.0.1, 10.0, Apple Watch Series 9 (41m...	14m 5s
Build on Ubuntu (ubuntu-20.04, 5.6.3)	58s
Build on macOS (macos-13, /Applications/Xcode_15.1.app, 17.2, 10.2, Apple Watch Ultra (49mm), iPh...	14m 1s
	1h 58m 5s

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