Avoid saving the `texture_rd_rid` property of TextureRD resources #20605

Job	Run time
📊 Static checks / Code style, file formatting, and docs	29s
🍏 iOS / Template (target=template_release)	3m 20s
🤖 Android / Template (target=template_release)	3m 52s
🌐 Web / Template w/ threads (target=template_release, threads=yes)	1m 5s
🐧 Linux / Editor w/ Mono (target=editor)	4m 33s
🌐 Web / Template w/o threads (target=template_release, threads=no)	1m 21s
🍎 macOS / Editor (target=editor, tests=yes)	5m 5s
🐧 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)	16m 29s
🍎 macOS / Template (target=template_release)	5m 8s
🐧 Linux / Editor with clang sanitizers (target=editor, tests=yes, dev_build=yes, use_asan=yes, use_ubsan=yes, use_llvm=yes, linker=lld)	5m 46s
🐧 Linux / Editor with ThreadSanitizer (target=editor, tests=yes, dev_build=yes, use_tsan=yes, use_llvm=yes, linker=lld)	5m 47s
🐧 Linux / Template w/ Mono (target=template_release)	1m 50s
🏁 Windows / Editor (target=editor, tests=yes)	7m 43s
🐧 Linux / Minimal template (target=template_release, everything disabled)	1m 25s
🏁 Windows / Template (target=template_release)	6m 59s
🪲 Godot CPP / Build and test Godot CPP	6m 43s
	1h 17m 35s

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