chore: drop last node v16 ci job

pnpm v9 won't run on node v16.
As node v16 is EOL, we can safely remove this job from ci.

Author: cexbrayat

.github/workflows/ci.yml

@@ -87,16 +87,6 @@ jobs:
             flag-for-vitest: '--vitest'
             flag-for-e2e: '--cypress'
             flag-for-devtools: '--devtools'
-
-          - node-version: 16
-            os: ubuntu-latest
-            flag-for-ts: '--typescript'
-            flag-for-jsx: '--jsx'
-            flag-for-router: '--router'
-            flag-for-pinia: '--pinia'
-            flag-for-vitest: '--vitest'
-            flag-for-e2e: '--cypress'
-            flag-for-devtools: '--devtools'
     runs-on: ${{ matrix.os }}
     continue-on-error: ${{ matrix.os == 'windows-latest' }}
     env: