Update Yarn to v4.15.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
yarn (source)	4.14.1 → 4.15.0

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Release Notes

yarnpkg/berry (yarn)

v4.15.0: v4.15.0

Compare Source

What's Changed

• Fix Next.JS e2e test by @​brandonbothell in #​7115
• perf(plugin-nm): cache install state across workspaces by @​sophiebits in #​7126
• fix(patch) Correctly handle Unicode paths by @​liuxingbaoyu in #​7123
• fix(plugin-npm-cli): enable OIDC publish on CircleCI by @​joshuayoes in #​7122
• fix(core): ignore legacy YARN_IGNORE_SCRIPTS env var by @​KimHyeongRae0 in #​7120
• fix: Reject dependency names with leading/trailing whitespace (fixes duplicate installs) by @​muskaanshraogi in #​7124
• feat(plugin-pnpm): make pnpm install concurrency configurable by @​lennartschoch in #​7118
• PnP: Stop using EDABF solution for Node 26.1.0+ by @​clemyan in #​7133
• Makes npmMinimalAgeGate: 1d the default by @​arcanis in #​7135

New Contributors

• @​brandonbothell made their first contribution in #​7115
• @​sophiebits made their first contribution in #​7126
• @​liuxingbaoyu made their first contribution in #​7123
• @​joshuayoes made their first contribution in #​7122
• @​KimHyeongRae0 made their first contribution in #​7120
• @​muskaanshraogi made their first contribution in #​7124
• @​lennartschoch made their first contribution in #​7118

Full Changelog: https://github.com/yarnpkg/berry/compare/@yarnpkg/cli/4.14.1...@​yarnpkg/cli/4.15.0

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