chore(dependabot): ignore vite v8 until plugin-react-swc v4 is adopted

[MarkAC007]

Summary

• Adds vite >=8.0.0 to the dependabot ignore list (mirrors the existing React 19 pattern)
• Vite 8 has a peer-dep conflict with @vitejs/plugin-react-swc@3.x (which only declares peer vite@^4 || ^5 || ^6 || ^7), causing npm ci to ERESOLVE in CI
• This unblocks dependabot from re-opening the broken dev-dependencies bump (chore(deps-dev): bump the dev-dependencies group across 1 directory with 12 updates #49) until we explicitly pair vite 8 with plugin-react-swc v4

Why

PR #49 failed CI on both Code Quality & Build (20.x) and Check Licenses because it bumped vite to 8.0.9 while plugin-react-swc remained at 3.x. The fix is either to bump both together (which requires evaluating plugin-react-swc 4.x — currently bundled inside the unrelated major prod-deps PR #45) or to pin vite at 7.x. This PR takes the pin path so dependabot stops generating broken PRs.

After merge

• Close chore(deps-dev): bump the dev-dependencies group across 1 directory with 12 updates #49
• Dependabot will regenerate a clean dev-dependencies PR on the next weekly cycle (or sooner if triggered)

Test plan

• No code changes — config-only
• CI passes on this branch (no install changes, should be green)