fix(ci): bypass delegation-guard during merge conflict resolution (#133) #120

Job	Run time
Preflight (fmt, clippy, check, agents-md)	40s
Size guard (<25 MiB)	2m 11s
cargo-deny	33s
Determinism	30s
MSRV (1.95)	26s
Test (windows-latest)	3m 38s
Docs (build, no deploy)	41s
Test (macos-latest)	1m 54s
Test (ubuntu-latest)	1m 22s
Coverage	1m 51s
	13m 46s

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