fix(sync-templates): empty matrix strategy expansion #11594

Job	Run time
preflight / preflight	43s
preflight / ci-versions	1m 5s
test-full-crypto-feature	2m 31s
cargo-check-benches (master)	20m 50s
cargo-check-benches (current)	21m 2s
test-node-metrics	8m 10s
cargo-check-all-crate-macos	11m 29s
test-frame-ui	26m 56s
cargo-check-each-crate (1)	16m 13s
cargo-check-each-crate (2)	17m 35s
cargo-check-each-crate (3)	6m 31s
cargo-check-each-crate (4)	15m 1s
cargo-check-each-crate (5)	20m 53s
cargo-check-each-crate (6)	13m 19s
cargo-check-each-crate (7)	24m 15s
test-frame-examples-compile-to-wasm	3m 2s
test-deterministic-wasm	6m 24s
check-tracing	2m 18s
check-metadata-hash	6m 3s
node-bench-regression-guard	14s
All test misc tests passed	1s
	3h 44m 35s

Provide feedback