chore(renovate): hold react and the reanimated pair to the Expo SDK line

[GSTJ]

Two Renovate PRs are red on react-native-magic-modal#test for the same reason: each moves a version the Expo SDK picks. This adds the rules that stop them being re-proposed. #305 and #306 get closed against it.

react and react-dom

renovate.json already holds react-native, and the shared preset already disables react-test-renderer on the grounds that react's version is the SDK's to pick. The preset's Expo rule never lists react or react-dom though, so they stayed open.

The workspace is hoisted, so whichever react wins the root node_modules is the one packages/modal tests against, whatever any single package.json says. #305 only edits apps/docs/package.json:

root  node_modules/react                 19.2.8   <- docs won the root
root  node_modules/react-test-renderer   19.2.0   <- SDK's, unchanged
examples/kitchen-sink/.../react          19.2.0   <- nested, doctor stays quiet

@testing-library/react-native asserts the two match, so three of four suites died before running:

Incorrect version of "react-test-renderer" detected.
Expected "19.2.8", but found "19.2.0".

react-test-renderer can't follow it up, since the preset disables it.

Holding react costs nothing here. apps/docs is a static export (next build, then serve out), and 19.2.1 through 19.2.8 are all Server Components and Server Actions changes.

reanimated, worklets and screens

The example-app file rule only reaches examples/kitchen-sink/package.json, so Renovate kept proposing these on the packages/modal side alone. #306 took reanimated 4.5.3 there, which installed a second copy beside the example app's 4.2.3 and then asserted on its own peer:

reanimated 4.5.3 peers: react-native-worklets 0.10.x - 0.11.x
expo 55.0.28 ships:     react-native-worklets 0.7.4

[Reanimated] Your installed version of Worklets (0.7.4) is not compatible
with installed version of Reanimated (4.5.3).

Moving worklets up to 0.10.3 to satisfy it turns the suites green, 36/36. expo-doctor then fails:

X Check that packages match versions required by installed Expo SDK
  package                expected  found
  react-native-worklets  0.7.4     0.10.3

Worklets is a native module and isn't on the example app's expo.install.exclude list, only reanimated and gesture-handler are. So 4.5.3 cannot land while the repo is on SDK 55. react-native-screens sits in the same position and is held for the same reason.

Verification

Clean node_modules, rebased on main:

• oxlint straight from node_modules/.bin in all three workspaces, exit 0. Planted an unused var first to confirm it exits 1.
• format, typecheck, build, doctor 19/19, changelog:check all exit 0
• 36 tests across 4 suites
• renovate-config-validator accepts the file

Config only, so no E2E and no release.

Proof, including both reproductions and the worklets experiment: magic-modal/305-306

#305 reproduced	#306 reproduced
worklets aligned, doctor fails	chain green here