fix(gatsby-source-drupal): Fix Drupal webhook delete issues (#32180)
fix(gatsby-source-drupal): Fix Drupal webhook delete issues (#32180)

* fix(gatsby-source-drupal): Fix Drupal webhook delete issues

* Update packages/gatsby-source-drupal/src/gatsby-node.js

Co-authored-by: Kyle Mathews <7bd94dfba4631668b5e30ca2e1b9b5e24b0f4d74@gmail.com>

Co-authored-by: Kyle Mathews <7bd94dfba4631668b5e30ca2e1b9b5e24b0f4d74@gmail.com>
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