fix: remove Amplitude as dependency for SPM

[bgiori]

Summary

• Remove Amplitude dependency from Package.swift
  • This one fell through the cracks when updating from beta SDK

Checklist

• [x] Does your PR title have the correct title format?
• Does your PR have a breaking change?: NO

[github-actions[bot]]

:tada: This PR is included in version 1.0.1 :tada:

The release is available on:

• GitHub release
• v1.0.1

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