avoid type-deduction in `continues_on` #2651

Job	Run time
macos-CPU (MacOS) (clang, Debug)	4m 19s
CPU (clang 16, Release, ASAN)	6m 23s
CPU (gcc 11, Debug)	4m 52s
CPU (Windows) (msvc, Release)	13m 1s
CPU (gcc 11, Release, ASAN)	6m 39s
macos-CPU (MacOS) (clang, Release)	4m 3s
CPU (gcc 11, Release)	4m 33s
CPU (gcc 13, Debug)	5m 12s
CPU (clang 16, Release)	6m 2s
CPU (gcc 12, Release, TSAN)	6m 5s
CPU (Windows) (msvc, Debug)	11m 31s
CPU (clang 16, Debug)	5m 26s
CI (CPU) (MacOS)	4s
CI (CPU)	3s
CI (CPU) (Windows)	11s
	1h 18m 24s

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