Do not run tarpaulin on serde_with_macros #2159

Job	Run time
Rustfmt (stable)	6s
Build and Test (ubuntu-latest, 1.70)	2m 24s
clippy_check (ubuntu-latest, stable)	25s
Build and Test (ubuntu-latest, 1.75)	2m 1s
clippy_check (ubuntu-latest, nightly)	56s
clippy_check (windows-latest, stable)	1m 35s
Build and Test (ubuntu-latest, 1.80)	2m 9s
Build and Test (ubuntu-latest, stable)	4m 34s
clippy_check (windows-latest, nightly)	1m 40s
Build and Test (ubuntu-latest, beta)	2m 28s
Build and Test (ubuntu-latest, nightly)	2m 9s
Build and Test (windows-latest, 1.70)	3m 22s
Build and Test (windows-latest, 1.75)	3m 39s
Build and Test (windows-latest, 1.80)	3m 23s
Build and Test (windows-latest, stable)	3m 54s
Build and Test (windows-latest, beta)	4m 20s
Build and Test (windows-latest, nightly)	4m 15s
Tests result	1s
	43m 21s

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