fix: migrate ecosystem-ci scripts to pnpm

[haoqunjiang]

There's no pnpm workspace command. Instead, pnpm uses the --filter option to run a command in a specific workspace package.

Note there will always be an "ELIFECYCLE Command failed." message at the end of the vite-plugin test.
But that's from the vite preview server being stopped after a successful test run. It's not a real error and doesn't affect the test result or the exit code.

What kind of change does this PR introduce?

• Bugfix
• Feature
• Documentation
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change?

• Yes
• No

The PR fulfills these requirements:

• It's submitted to the dev branch (or v[X] branch)
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)
• It's been tested on a Cordova (iOS, Android) app
• It's been tested on an Electron app
• Any necessary documentation has been added or updated in the docs or explained in the PR's description.

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to start a new feature discussion first and wait for approval before working on it)

Other information:

[yusufkandemir]

I overlooked those scripts while migrating to pnpm, thanks for the fix.