Portal: Fixed issue where signup was not always called with hCaptcha #15845

Job	Run time
Setup	48s
Lint	36s
i18n	27s
Admin tests - Chrome	0s
Browser tests	0s
Unit tests (Node 18.12.1)	52s
Database tests (Node ${{ matrix.node }}, ${{ matrix.env.DB }})	0s
Unit tests (Node 20.11.1)	47s
Performance tests	0s
Admin-X Settings tests	0s
Comments-UI tests	0s
Regression tests (Node ${{ matrix.node }}, ${{ matrix.env.DB }})	0s
Signup-form tests	0s
Ghost-CLI tests	0s
Coverage	0s
All required tests passed or skipped	1s
Publish @tryghost/admin-x-activitypub	0s
Canary	0s
	3m 31s

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