Bump @testing-library/react from 12.1.5 to 14.2.1 in /backstage

[dependabot[bot]]

Bumps @testing-library/react from 12.1.5 to 14.2.1.

Release notes

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

v14.2.1

14.2.1 (2024-02-01)

Bug Fixes

• Update types to support all possible react component return values (#1272) (55e79c2)

v14.2.0

14.2.0 (2024-01-30)

Features

• add reactStrictMode option to enable strict mode render (#1241) (0880eba)

v14.1.2

14.1.2 (2023-11-17)

Bug Fixes

• revert missing hooks warnings (#1255) (1c67477)

v14.1.1

14.1.1 (2023-11-17)

Bug Fixes

• log globals warning only once (#1252) (fd52a59), closes #1249

v14.1.0

14.1.0 (2023-11-08)

Features

• add warnings when globals are missing (#1244) (d80319f)

v14.0.0

14.0.0 (2023-02-16)

Bug Fixes

• Prevent "missing act" warning for queued microtasks (#1137) (f78839b)

Features

... (truncated)

Commits

• edb6344 docs: add trappar as a contributor for code (#1273)
• 55e79c2 fix: Update types to support all possible react component return values (#1272)
• 4509fb6 docs: add yinm as a contributor for code (#1269)
• 0880eba feat: add reactStrictMode option to enable strict mode render (#1241)
• 03a301f chore: update stackblitz url in issue template (#1258)
• 1c67477 fix: revert missing hooks warnings (#1255)
• fd52a59 fix: log globals warning only once (#1252)
• d80319f feat: add warnings when globals are missing (#1244)
• c04b8f0 docs: add cmdcolin as a contributor for doc (#1238)
• 5b48916 docs: fix readme CI badge (#1237)
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #675.