chore(storage): remove form-data dependency use native globals and update package scripts

[thiyaguk09]

Removes the form-data dependency (and related legacy HTTP packages) in @google-cloud/storage by adopting native Node.js 18+ global APIs and resolving transitive vulnerability paths.

Key Changes

• Replaced form-data and node-fetch imports in tests with built-in global FormData and fetch.
• Removed form-data, node-fetch, @types/node-fetch from devDependencies.
• Bumped @types/request to ^2.48.12.

Fixes #7348

[gemini-code-assist]

Code Review

This pull request removes the 'samples-test' script, cleans up unused dependencies ('form-data' and 'cross-env'), and simplifies the 'test' script. Feedback suggests replacing the 'samples-test' script with a no-op command instead of deleting it to avoid breaking CI pipelines that might still invoke it. Additionally, it is recommended to restore the 'cross-env' and preload configuration in the 'test' script, as removing them appears unrelated to the dependency cleanup.

[Dhriti07]

The PR description mentions bumping retry-request and teeny-request, as well as removing the samples-test script. I dont see those changes in this diff. Was that description accidentally mentioning these, or are there missing commits?

[thiyaguk09]

The PR description mentions bumping retry-request and teeny-request, as well as removing the samples-test script. I dont see those changes in this diff. Was that description accidentally mentioning these, or are there missing commits?

This was addressed here: 033de68. However, the version bump was completed and released in a separate PR prior to this merge, which is why it is not reflected here.

[Dhriti07]

The PR description mentions bumping retry-request and teeny-request, as well as removing the samples-test script. I dont see those changes in this diff. Was that description accidentally mentioning these, or are there missing commits?

This was addressed here: 033de68. However, the version bump was completed and released in a separate PR prior to this merge, which is why it is not reflected here.

Can we update the pr description of this pr to reflect the changes accordingly ?

[thiyaguk09]

The PR description mentions bumping retry-request and teeny-request, as well as removing the samples-test script. I dont see those changes in this diff. Was that description accidentally mentioning these, or are there missing commits?

This was addressed here: 033de68. However, the version bump was completed and released in a separate PR prior to this merge, which is why it is not reflected here.

Can we update the pr description of this pr to reflect the changes accordingly ?

The description has been updated accordingly.