Make Queue sendable #3253

Job	Run time
Check formatting	8s
Lint macOS x86_64	3m 20s
Check MSRV	17s
Lint iOS ARMv7s	3m 20s
Lint visionOS Aarch64 simulator	3m 19s
Lint GNUStep + exceptions	1m 24s
Lint header-translator	34s
Lint test-assembly	29s
Test macOS 15 Aarch64	1m 34s
Assembly tests	55s
Verify header translator output	2m 39s
Check framework features	0s
${{ ((matrix.test && 'Test') \|\| 'Build') }} ${{ matrix.name }}	0s
Test Compiler-RT	23s
Test GNUStep with libobjc2 v1.9	1m 1s
Compiler UI	49s
Test GNUStep with libobjc2 v2.0	1m 10s
Test on iOS simulator w. dinghy	0s
Test GNUStep with libobjc2 v2.1 on nightly	53s
Test GNUStep 32bit	1m 4s
	23m 19s

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