Reduce the duration of E2E

[josephfusco]

https://github.com/wp-graphql/wpgraphql-ide/actions/runs/8603688510/job/23576107938?pr=94

This project's E2E tests may have some extra steps causing the tests to run unnecessarily long. These should be cleaned up.

[josephfusco]

Closing as npm cache has been implemented in GitHub workflow

• https://github.com/wp-graphql/wpgraphql-ide/blob/main/.github/workflows/e2e-tests.yml#L26
• https://github.com/wp-graphql/wpgraphql-ide/blob/main/.github/workflows/release-plugin.yml#L20
• https://github.com/wp-graphql/wpgraphql-ide/blob/main/.github/workflows/unit-tests.yml#L26