turbopack: Don't error with legacy server actions boolean

[jridgewell]

What?

This stops Turbopack from erroring out when trying to parse apps using NextConfig's legacy experimental.serverActions boolean value.

Why?

Old apps may not have removed the legacy boolean flag, but should still run.

How?

At first I attempted updating Zod's configuration to use a default option config when a boolean was encountered, and passing the updated config to Turbopack, but this would hide the warning message. Then I tried implementing a custom Deserializer on the Rust side to handle boolean values and default. But, it was just so much easier to implement with a enum supporting both the current and the legacy configuration.

Closes PACK-1962

[kwonoj]

fyi https://github.com/vercel/next.js/actions/runs/6858618944/job/18649733710?pr=58416#step:27:293 seems known failure, I updated manifest in my PR #58409

context: https://vercel.slack.com/archives/C04KC8A53T7/p1699922430070569?thread_ts=1699922251.904969&cid=C04KC8A53T7

[ijjk]

Tests Passed

[ijjk]

Stats from current PR

Default Build

General Overall increase ⚠️

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
buildDuration	10.4s	10.5s	⚠️ +136ms
buildDurationCached	6s	6s	N/A
nodeModulesSize	199 MB	199 MB	⚠️ +2.28 kB
nextStartRea..uration (ms)	423ms	428ms	N/A

Client Bundles (main, webpack)

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
199-HASH.js gzip	29.2 kB	29.2 kB	N/A
3f784ff6-HASH.js gzip	53.3 kB	53.3 kB	N/A
494.HASH.js gzip	180 B	181 B	N/A
framework-HASH.js gzip	45.2 kB	45.2 kB	✓
main-app-HASH.js gzip	241 B	239 B	N/A
main-HASH.js gzip	31.7 kB	31.8 kB	N/A
webpack-HASH.js gzip	1.7 kB	1.7 kB	✓
Overall change	46.9 kB	46.9 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
polyfills-HASH.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
_app-HASH.js gzip	194 B	195 B	N/A
_error-HASH.js gzip	182 B	181 B	N/A
amp-HASH.js gzip	504 B	506 B	N/A
css-HASH.js gzip	322 B	323 B	N/A
dynamic-HASH.js gzip	2.5 kB	2.5 kB	✓
edge-ssr-HASH.js gzip	253 B	255 B	N/A
head-HASH.js gzip	348 B	347 B	N/A
hooks-HASH.js gzip	369 B	368 B	N/A
image-HASH.js gzip	4.3 kB	4.3 kB	N/A
index-HASH.js gzip	256 B	256 B	✓
link-HASH.js gzip	2.65 kB	2.65 kB	N/A
routerDirect..HASH.js gzip	311 B	311 B	✓
script-HASH.js gzip	384 B	383 B	N/A
withRouter-HASH.js gzip	307 B	308 B	N/A
1afbb74e6ecf..834.css gzip	106 B	106 B	✓
Overall change	3.17 kB	3.17 kB	✓

Client Build Manifests

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
_buildManifest.js gzip	486 B	484 B	N/A
Overall change	0 B	0 B	✓

Rendered Page Sizes

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
index.html gzip	529 B	527 B	N/A
link.html gzip	541 B	543 B	N/A
withRouter.html gzip	524 B	523 B	N/A
Overall change	0 B	0 B	✓

Edge SSR bundle Size

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
edge-ssr.js gzip	92.6 kB	92.6 kB	N/A
page.js gzip	145 kB	145 kB	N/A
Overall change	0 B	0 B	✓

Middleware size

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
middleware-b..fest.js gzip	625 B	626 B	N/A
middleware-r..fest.js gzip	150 B	151 B	N/A
middleware.js gzip	24.8 kB	24.8 kB	N/A
edge-runtime..pack.js gzip	1.92 kB	1.92 kB	✓
Overall change	1.92 kB	1.92 kB	✓

Next Runtimes

	vercel/next.js canary	vercel/next.js jrl-server-actions-config	Change
app-page-exp...dev.js gzip	167 kB	167 kB	✓
app-page-exp..prod.js gzip	93.2 kB	93.2 kB	✓
app-page-tur..prod.js gzip	93.9 kB	93.9 kB	✓
app-page-tur..prod.js gzip	88.5 kB	88.5 kB	✓
app-page.run...dev.js gzip	137 kB	137 kB	✓
app-page.run..prod.js gzip	87.9 kB	87.9 kB	✓
app-route-ex...dev.js gzip	23.8 kB	23.8 kB	✓
app-route-ex..prod.js gzip	16.4 kB	16.4 kB	✓
app-route-tu..prod.js gzip	16.4 kB	16.4 kB	✓
app-route-tu..prod.js gzip	16 kB	16 kB	✓
app-route.ru...dev.js gzip	23.2 kB	23.2 kB	✓
app-route.ru..prod.js gzip	16 kB	16 kB	✓
pages-api-tu..prod.js gzip	9.37 kB	9.37 kB	✓
pages-api.ru...dev.js gzip	9.64 kB	9.64 kB	✓
pages-api.ru..prod.js gzip	9.37 kB	9.37 kB	✓
pages-turbo...prod.js gzip	21.8 kB	21.8 kB	✓
pages.runtim...dev.js gzip	22.5 kB	22.5 kB	✓
pages.runtim..prod.js gzip	21.8 kB	21.8 kB	✓
server.runti..prod.js gzip	49 kB	49 kB	✓
Overall change	923 kB	923 kB	✓

Commit: 3773829