v12.0.4-canary.5

Core Changes

• Update swc: #31233
• run middleware parser handler only for middleware modules: #31219
• Update swc minifier: #31242
• Fix process.env overriden in web runtime: #31261
• fix: replaced useless let: #31239
• Experimental next/jest config helper: #31246
• correctly assess node equality when nonce attribute is present: #27573
• bugfix/i18n Do not support the second locale in the pathname: #31229

Documentation Changes

• docs: fix typo in css-in-js page: #31244

Example Changes

• Fix Auth0 Example: #31284

Misc Changes

• Add integration test of API routes with concurrentFeatures enabled: #31227
• Update contributing doc with trouble shooting section for swc: #31265

Credits

Huge thanks to @shuding, @kdy1, @sokra, @thundermiracle, @huozhi, @stefano-rainieri, @ericbiewener, @vordgi, and @stevejarvis for helping!