Fix third party scheduled tests running on forks #628

Job	Run time
Check for schedule trigger on fork	1s
cattrs tests (3.9)	5m 43s
pyanalyze tests (3.9)	4m 13s
stubtest & mypyc tests (3.9)	4m 6s
cattrs tests (3.10)	5m 27s
pydantic tests (3.9)	33s
pyanalyze tests (3.10)	3m 51s
stubtest & mypyc tests (3.10)	4m 7s
cattrs tests (3.11)	4m 42s
pyanalyze tests (3.11)	3m 59s
pydantic tests (3.10)	35s
cattrs tests (3.12)	5m 30s
stubtest & mypyc tests (3.11)	3m 50s
pyanalyze tests (3.12)	3m 24s
pydantic tests (3.11)	32s
stubtest & mypyc tests (3.12)	4m 15s
pyanalyze tests (3.13)	3m 25s
pydantic tests (3.12)	35s
typed-argument-parser tests (3.9)	14s
stubtest & mypyc tests (3.13)	4m 31s
pydantic tests (3.13)	44s
typed-argument-parser tests (3.10)	17s
typeguard tests (3.9)	17s
typed-argument-parser tests (3.11)	12s
typeguard tests (3.10)	14s
typing_inspect tests (3.9)	4s
typed-argument-parser tests (3.12)	16s
typeguard tests (3.11)	18s
typing_inspect tests (3.10)	8s
typed-argument-parser tests (3.13)	16s
typeguard tests (3.12)	15s
typing_inspect tests (3.11)	6s
typing_inspect tests (3.12)	5s
typeguard tests (3.13)	21s
typing_inspect tests (3.13)	14s
Create an issue if daily tests failed	0s
	1h 7m 20s

Provide feedback