build: update pnpm to v11 (#37591)

Update to https://github.com/pnpm/pnpm/releases/tag/v11.0.0

- move all pnpm settings to `pnpm-workspace.yaml`, pnpm v11 only reads
that file
- drop redundant or no-op settings
- disable `strictDepBuilds` to avoid having to manually specify deps
with build scripts, this is equivalent to v10 where it will not execute
and warn.
- add workarounds for https://github.com/SukkaW/nolyfill/issues/119
- remove dead eslintrc entry

---
This PR was written with the help of Claude Opus 4.7

---------

Signed-off-by: silverwind <me@silverwind.io>
Co-authored-by: Claude (Opus 4.7) <noreply@anthropic.com>
Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>

.github/workflows/pull-e2e-tests.yml

@@ -29,7 +29,7 @@ jobs:
         with:
           cache-name: e2e
           build-cache: "false"
-      - uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v5.0.0
+      - uses: pnpm/action-setup@8912a9102ac27614460f54aedde9e1e7f9aec20d # v6.0.5
       - uses: actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e # v6.4.0
         with:
           node-version: 24