Bump `ampproject/amp-toolbox`; Fix Gutenberg's validation issues with Script Modules #11332

Job	Run time
Pre run	5s
E2E test: JS (1, 2)	11m 50s
Build: dev build ZIP	1m 54s
Feature tests: PHP 7.4, WP latest	3m 27s
E2E test: JS (2, 2)	11m 28s
Build: prod build ZIP	2m 18s
Lint: CSS	0s
Feature tests: PHP 8.3, WP trunk	2m 22s
Feature tests: PHP 8.2, WP trunk	2m 22s
Feature tests: PHP 8.1, WP trunk	2m 39s
Lint: JS	1m 22s
Feature tests: PHP 8.0, WP latest	3m 21s
Static Analysis: PHP	50s
Feature tests: PHP 7.4, WP 5.3	3m 18s
Lint: PHP	52s
Unit test: JS	37s
Unit test: PHP 8.0, WP latest	2m 24s
Unit test: PHP 8.3, WP trunk	2m 3s
Unit test: PHP 8.2, WP trunk	1m 44s
Unit test: PHP 8.1, WP trunk	1m 48s
Unit test: PHP 8.0, WP trunk	1m 42s
Unit test (with coverage): PHP 8.0, WP latest	3m 53s
Unit test: PHP 8.0, WP latest	2m 12s
Unit test: PHP 7.4, WP latest	2m 27s
Unit test: PHP 7.4, WP latest	2m 4s
Unit test: PHP 7.4, WP 5.3	2m 42s
Unit test: PHP 7.4, WP 5.3	2m 29s
Upload plugin ZIPs to Google Cloud Storage	25s
Comment on PR with links to plugin ZIPs	3s
	1h 14m 41s

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