Implemented StableApiDefinition::rstring_interned_p methods for TruffleRuby. #1724

Job	Run time
🔘 Static (3.2.2, ubuntu-latest, stable)	1m 13s
📥 Fetch CI data	1s
🧪 Test (2.7, ubuntu-latest, 1.65)	4m 14s
🧪 Test (2.7, ubuntu-latest, stable)	2m 53s
🧪 Test (2.7, windows-2022, stable)	13m 43s
🧪 Test (3.0, ubuntu-latest, 1.65)	3m 48s
🧪 Test (3.0, ubuntu-latest, stable)	2m 22s
🧪 Test (3.0, macos-latest, stable)	2m 19s
🧪 Test (3.0, windows-2022, stable)	7m 23s
🧪 Test (3.1, ubuntu-latest, 1.65)	4m 3s
🧪 Test (3.1, ubuntu-latest, stable)	2m 30s
🧪 Test (3.1, windows-2022, stable)	11m 51s
🧪 Test (3.2, ubuntu-latest, 1.65)	3m 53s
🧪 Test (3.2, ubuntu-latest, stable)	2m 43s
🧪 Test (3.2, macos-latest, stable)	2m 9s
🧪 Test (3.2, windows-2022, stable)	7m 16s
🧪 Test (3.3, ubuntu-latest, 1.65)	4m 5s
🧪 Test (3.3, ubuntu-latest, stable)	2m 39s
🧪 Test (3.3, macos-latest, stable)	2m 34s
🧪 Test (3.3, windows-2022, stable)	13m 20s
🧪 Test (3.4.0-preview2, ubuntu-latest, 1.65)	4m 2s
🧪 Test (3.4.0-preview2, ubuntu-latest, stable)	2m 31s
🧪 Test (3.4.0-preview2, macos-latest, stable)	2m 43s
🧪 Test (truffleruby, ubuntu-latest, stable)	2m 26s
🧪 Test (truffleruby, macos-latest, stable)	2m 13s
🧪 Test (ruby-debug, ubuntu-24.04, stable)	2m 47s
🧪 Test (mswin, windows-2022, stable-x86_64-pc-windows-msvc)	5m 15s
	1h 56m 56s

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