Bump @testing-library/react from 12.1.5 to 15.0.7 in /backstage

[dependabot[bot]]

Bumps @testing-library/react from 12.1.5 to 15.0.7.

Release notes

Sourced from @​testing-library/react's releases.

v15.0.7

15.0.7 (2024-05-07)

Bug Fixes

• Ensure act is not any when React.act is not declared (#1323) (c1f2957)

v15.0.6

15.0.6 (2024-05-01)

Bug Fixes

• export new act when available (#1319) (b6e59f7)

v15.0.5

15.0.5 (2024-04-26)

Bug Fixes

• Stop restricting container option based on hydrate (#1313) (d143f46)

v15.0.4

15.0.4 (2024-04-23)

Bug Fixes

• Ensure renderHook options extend options for render (#1308) (48282c2)

v15.0.3

15.0.3 (2024-04-23)

Bug Fixes

• Don't raise TypeScript errors when hydating document (#1304) (067d0c6)

v15.0.2

15.0.2 (2024-04-13)

Bug Fixes

• Improve legacyRoot error message (#1301) (c63b873)

v15.0.1

15.0.1 (2024-04-11)

... (truncated)

Commits

• c1f2957 fix: Ensure act is not any when React.act is not declared (#1323)
• b6e59f7 fix: export new act when available (#1319)
• f6a1677 chore: Adjust tests to workaround 18.3.0 bug (#1315)
• d143f46 fix: Stop restricting container option based on hydrate (#1313)
• 48282c2 fix: Ensure renderHook options extend options for render (#1308)
• 067d0c6 fix: Don't raise TypeScript errors when hydating document (#1304)
• c63b873 fix: Improve legacyRoot error message (#1301)
• 1645d21 fix: Stop using nullish coalescing (#1299)
• 787cb85 Release: 15.0.0 (#1295)
• 9c4a46d feat: Add support for React 19 Canary (#1294)
• Additional commits viewable in compare view

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