test: pin material-ui link fixture dependencies (#94354)
### What?
Pin the dependency versions used by the Material UI new-link-behavior
fixture.
### Why?
The fixture currently installs `latest`, which now resolves
`@mui/material` to 9.0.1. That version causes an SWC source-map panic
while compiling the fixture, so an unrelated link behavior test fails
before reaching its assertion.
### How?
Replace the floating dependency versions with the known-good Material UI
5.11.16, Emotion 11, and prop-types versions previously used by the
fixture.
### Verification
- `pnpm build-all`
- `pnpm prettier --with-node-modules --ignore-path .prettierignore
--write test/e2e/new-link-behavior/material-ui.test.ts`
- `npx eslint --config eslint.config.mjs --fix
test/e2e/new-link-behavior/material-ui.test.ts`
- `NEXT_TEST_PREFER_OFFLINE=1 pnpm test-dev-webpack
test/e2e/new-link-behavior/material-ui.test.ts`
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