Update GNUStep dependencies #3299

Job	Run time
Check formatting	8s
Lint macOS x86_64	3m 23s
Test GNUStep with libobjc2 v1.9	4m 36s
Check MSRV	51s
Test GNUStep with libobjc2 v2.0	4m 16s
Test GNUStep with libobjc2 v2.1 on nightly	4m 12s
Lint iOS ARMv7s	3m 22s
Lint visionOS Aarch64 simulator	3m 24s
Test GNUStep 32bit	3m 7s
Lint GNUStep + exceptions	1m 25s
Lint header-translator	29s
Lint test-assembly	24s
Test macOS 15 Aarch64	1m 23s
Verify header translator output	3m 25s
Assembly tests	3m 36s
Check framework features	5m 5s
Test macOS 13 x86_64	2m 54s
Compiler UI	49s
Test macOS 15 AArch64	58s
Test Compiler-RT	44s
Test macOS 14 Aarch64 nightly	2m 47s
Test on iOS simulator w. dinghy	38m 18s
Build macOS 13 x86 with 10.13 SDK	1m 35s
Test macOS 13 x86_64 with 10.12 SDK	3m 22s
Build iOS x86_64 simulator	4m 19s
Test Mac Catalyst Aarch64	2m 36s
Build visionOS Aarch64	1s
Build tvOS Aarch64	1s
Build watchOS ARM64_32	1s
Build iOS ARMv7s	2m 50s
Build iOS x86	3m 5s
	1h 47m 26s

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