EDIutils v3.0.1

MINOR IMPROVEMENTS

• Migrated the test suite and VCR cassette fixtures to the PASTA staging environment (https://pasta-s.lternet.edu), preventing test pollution on the production repository.
• Enhanced entity and descendant tests to dynamically resolve entity IDs and derived package identifiers at runtime.
• Added configurable request throttling (EDI_TEST_THROTTLE_DELAY, default 2s in CI) for live HTTP test requests to prevent HTTP 429 rate limit errors.
• Configured VCR cassette mocks for read_data_package_archive().
• Refactored test-only helper functions into tests/testthat/helper-test-package.R to keep package runtime namespace clean and modular.
• Updated GitHub Actions CI workflows with sequential execution (max-parallel: 1), request throttling, and workflow_dispatch manual triggers.