fix: invalidate dev manifest CSS in isolated SSR runners - #417

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-node@v4, pnpm/action-setup@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

{ "workflowData": { "owner": "solidjs", "repo": "solid-vite-plugin", "sha": "81555d8f9c9b3681a6e6b2d949023a942a40d018", "ref": "417", "headBranch": null }, "key": "3cK9LTCeD0", "runId": 38613980710, "webhookDebug": { "action": "requested", "head_branch": "fix/dev-manifest-css-cache", "head_repository_full_name": "everton-dgn/solid-vite-plugin", "full_name": "solidjs/solid-vite-plugin", "isPullRequest": true, "prNumber": 417, "prNumberType": "number", "isNewPullRequest": true, "isOldPullRequest": false, "prKey": "everton-dgn/solid-vite-plugin:fix/dev-manifest-css-cache", "oldPrDataHash": "51QIiGJSSH", "lookupKey": "everton-dgn/solid-vite-plugin:fix/dev-manifest-css-cache", "data": { "owner": "solidjs", "repo": "solid-vite-plugin", "sha": "81555d8f9c9b3681a6e6b2d949023a942a40d018", "ref": "417", "headBranch": null } }, "currentCursor": null, "pkgPrNewVersion": "0.0.91" }