Change GDScriptDataType `container_element_type` to vector container #16995

Job	Run time
📊 Static checks / Code style, file formatting, and docs	29s
🍏 iOS / Template (target=template_release)	4m 2s
🤖 Android / Template (target=template_release)	3m 56s
🏁 Windows / Editor (target=editor, tests=yes)	8m 42s
🏁 Windows / Template (target=template_release)	7m 2s
🌐 Web / Template (target=template_release)	1m 23s
🐧 Linux / Editor w/ Mono (target=editor)	4m 33s
🍎 macOS / Editor (target=editor, tests=yes)	9m 6s
🐧 Linux / Editor with doubles and GCC sanitizers (target=editor, tests=yes, dev_build=yes, scu_build=yes, precision=double, use_asan=yes, use_ubsan=yes, linker=gold)	15m 5s
🍎 macOS / Template (target=template_release)	4m 37s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	7m 4s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	7m 34s
🐧 Linux / Template w/ Mono (target=template_release)	1m 57s
🐧 Linux / Minimal template (target=template_release, everything disabled)	1m 36s
🪲 Godot CPP / Build and test Godot CPP	7m 3s
	1h 24m 9s

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