fix(deps): update nextjs monorepo to v15.3.0-canary.43

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
eslint-config-next (source)	15.3.0-canary.42 -> 15.3.0-canary.43
next (source)	15.3.0-canary.42 -> 15.3.0-canary.43

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Release Notes

vercel/next.js (eslint-config-next)

v15.3.0-canary.43

Compare Source

Core Changes

• Remove canary-gate and add experimental warning for alternate bundler: #​77806
• fix(next/image): bump [email protected]: #​77839
• Turbopack builds: Remove canary-gate and add experimental warning: #​77808
• feat: Disable char frequency analysis for mangler: #​77887
• Set Turbopack env var for internal modules: #​77902

Misc Changes

• Update Turbopack development test manifest: #​77886
• Update bundler production test manifest: #​77914
• Update bundler development test manifest: #​77915
• fix(turbopack): Apply import_map option of swc_emotion correctly: #​71776

Credits

Huge thanks to @​wbinnssmith, @​styfle, @​kdy1, and @​timneutkens for helping!

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