build(deps): bump tower-test from `c1e28af` to `46f9b4f` #10991

Job	Run time
Run unit tests	3m 34s
Build in release mode	1m 56s
Run integration tests	4m 4s
Subgraph Runner integration tests	3m 17s
Check rustfmt style	22s
Clippy linting	2m 42s
	15m 55s

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