[backport 2.3.x] TST (string dtype): avoid hardcoded object dtype for columns in datetime_frame fixture (#60192)#60198

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mroeschke merged 1 commit intopandas-dev:2.3.xfrom

jorisvandenbossche:backport-60192

Nov 5, 2024

Commits on Nov 5, 2024

TST (string dtype): avoid hardcoded object dtype for columns in datetime_frame fixture (#60192)
jorisvandenbossche
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