Remove private GitHub package registry usage

[rcj-siteimprove]

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Latest commit: 3b37bde

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[Jym77]

We also need to regenerate yarn.lock to point at the new registry. Simply delete it and yarn install again should do the trick.

[rcj-siteimprove]

The build broke, not exactly sure why. The first error is

node_modules/@types/enzyme/node_modules/@types/react/index.d.ts:3155:14 - error TS2300: Duplicate identifier 'LibraryManagedAttributes'.

[Jym77]

🙈 There seems to be unrelated updates in the lockfile (due to semver ranges in dependencies) that end up exploding like that.

I guess we can keep the old lockfile, and the actual change will happen with the next Alfa release 🤔

[Jym77]

jym@dk-jym02:/mnt/c/Projects/a11y/alfa-integrations (use-public-npm-registry *%=)$ yarn why -R @types/react
├─ @siteimprove/alfa-enzyme@workspace:packages/alfa-enzyme
│  ├─ @types/enzyme@npm:3.10.18 (via npm:^3.10.8)
│  │  └─ @types/react@npm:16.14.62 (via npm:^16)
│  └─ @siteimprove/alfa-react@workspace:packages/alfa-react [a1604] (via workspace:^ [a1604])
│
└─ @siteimprove/alfa-react@workspace:packages/alfa-react
   ├─ @types/react-test-renderer@npm:18.3.1 (via npm:^18.3.0)
   │  └─ @types/react@npm:18.3.18 (via npm:^18)
   └─ @types/react@npm:18.3.18 (via npm:^18.3.3)

jym@dk-jym02:/mnt/c/Projects/a11y/alfa-integrations (use-public-npm-registry %>)$ git switch main
jym@dk-jym02:/mnt/c/Projects/a11y/alfa-integrations (main %=)$ yarn install
(…)

jym@dk-jym02:/mnt/c/Projects/a11y/alfa-integrations (main %=)$ yarn why -R @types/react
├─ @siteimprove/alfa-enzyme@workspace:packages/alfa-enzyme
│  ├─ @types/enzyme@npm:3.10.12 (via npm:^3.10.8)
│  │  └─ @types/react@npm:18.3.3 (via npm:*)
│  └─ @siteimprove/alfa-react@workspace:packages/alfa-react [a1604] (via workspace:^ [a1604])
│
└─ @siteimprove/alfa-react@workspace:packages/alfa-react
   ├─ @types/react-test-renderer@npm:18.3.0 (via npm:^18.3.0)
   │  └─ @types/react@npm:18.3.3 (via npm:*)
   └─ @types/react@npm:18.3.3 (via npm:^18.3.3)

So, @types/enzyme used to depend on @types/react: * (resolved as 18) but now depends on @types/react: 16 which causes 2 @types/react to exist and collide…