Update test config to leverage swc

[ijjk]

This updates our jest configuration to no longer use babel-jest and instead uses @swc/jest which is much faster. This also updates to the latest version of jest, fixes our tsconfig.json used for tests (previously types in node_modules weren't resolved correctly), and ensures next/dist isn't un-necessarily transpiled in jest.

Timings for yarn testheadless test/unit/ on CI

• before: 3m 30s - 4m (example run)
• after: under 1m (example run)

Timings for yarn testheadless test/unit/ locally on m1 mac

• before: 90.16 seconds
• after: 29.92 seconds

[styfle]

Nice work! ⚡

[ijjk]

Stats from current PR

Default Build (Decrease detected ✓)

General Overall decrease ✓

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
buildDuration	15.9s	16.2s	⚠️ +266ms
buildDurationCached	3.6s	3.8s	⚠️ +201ms
nodeModulesSize	61.7 MB	61.7 MB	-2 B

Page Load Tests Overall decrease ⚠️

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
/ failed reqs	0	0	✓
/ total time (seconds)	2.962	2.969	⚠️ +0.01
/ avg req/sec	844.01	841.99	⚠️ -2.02
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	1.872	1.907	⚠️ +0.03
/error-in-render avg req/sec	1335.12	1310.82	⚠️ -24.3

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
745.HASH.js gzip	179 B	179 B	✓
framework-HASH.js gzip	42.2 kB	42.2 kB	✓
main-HASH.js gzip	23.3 kB	23.3 kB	✓
webpack-HASH.js gzip	1.45 kB	1.45 kB	✓
Overall change	67.1 kB	67.1 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
_app-HASH.js gzip	979 B	979 B	✓
_error-HASH.js gzip	194 B	194 B	✓
amp-HASH.js gzip	312 B	312 B	✓
css-HASH.js gzip	329 B	329 B	✓
dynamic-HASH.js gzip	2.67 kB	2.67 kB	✓
head-HASH.js gzip	351 B	351 B	✓
hooks-HASH.js gzip	918 B	918 B	✓
image-HASH.js gzip	4.14 kB	4.14 kB	✓
index-HASH.js gzip	261 B	261 B	✓
link-HASH.js gzip	1.66 kB	1.66 kB	✓
routerDirect..HASH.js gzip	318 B	318 B	✓
script-HASH.js gzip	387 B	387 B	✓
withRouter-HASH.js gzip	320 B	320 B	✓
bb14e60e810b..30f.css gzip	125 B	125 B	✓
Overall change	13 kB	13 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
_buildManifest.js gzip	491 B	491 B	✓
Overall change	491 B	491 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
index.html gzip	539 B	539 B	✓
link.html gzip	552 B	552 B	✓
withRouter.html gzip	534 B	534 B	✓
Overall change	1.63 kB	1.63 kB	✓

---

Webpack 4 Mode (Increase detected ⚠️)

General Overall decrease ✓

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
buildDuration	14s	13.7s	-293ms
buildDurationCached	5.9s	5.4s	-486ms
nodeModulesSize	61.7 MB	61.7 MB	-2 B

Page Load Tests Overall increase ✓

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
/ failed reqs	0	0	✓
/ total time (seconds)	3.211	2.928	-0.28
/ avg req/sec	778.54	853.69	+75.15
/error-in-render failed reqs	0	0	✓
/error-in-render total time (seconds)	2.073	1.876	-0.2
/error-in-render avg req/sec	1206	1332.56	+126.56

Client Bundles (main, webpack, commons)

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
16.HASH.js gzip	186 B	186 B	✓
677f882d2ed8..HASH.js gzip	14.1 kB	14.1 kB	✓
framework.HASH.js gzip	41.9 kB	41.9 kB	✓
main-HASH.js gzip	10.6 kB	10.6 kB	✓
webpack-HASH.js gzip	1.19 kB	1.19 kB	✓
Overall change	68 kB	68 kB	✓

Legacy Client Bundles (polyfills)

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
polyfills-a4..dd70.js gzip	31 kB	31 kB	✓
Overall change	31 kB	31 kB	✓

Client Pages

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
_app-HASH.js gzip	964 B	964 B	✓
_error-HASH.js gzip	3.8 kB	3.8 kB	✓
amp-HASH.js gzip	552 B	552 B	✓
css-HASH.js gzip	333 B	333 B	✓
dynamic-HASH.js gzip	2.87 kB	2.87 kB	✓
head-HASH.js gzip	3.06 kB	3.06 kB	✓
hooks-HASH.js gzip	924 B	924 B	✓
index-HASH.js gzip	231 B	231 B	✓
link-HASH.js gzip	1.64 kB	1.64 kB	✓
routerDirect..HASH.js gzip	298 B	298 B	✓
script-HASH.js gzip	3 kB	3 kB	✓
withRouter-HASH.js gzip	295 B	295 B	✓
30809af5c834..565.css gzip	125 B	125 B	✓
Overall change	18.1 kB	18.1 kB	✓

Client Build Manifests

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
_buildManifest.js gzip	501 B	501 B	✓
Overall change	501 B	501 B	✓

Rendered Page Sizes

	vercel/next.js canary	ijjk/next.js tests/update-config	Change
index.html gzip	586 B	586 B	✓
link.html gzip	597 B	597 B	✓
withRouter.html gzip	578 B	578 B	✓
Overall change	1.76 kB	1.76 kB	✓

Commit: 0162c26