Bump ampproject/amp-toolbox from 0.11.5 to 0.11.6 #1720

Job	Run time
Pre run	3s
Lint: JS	1m 3s
E2E test: JS (1, 2)	6m 9s
E2E test: JS (2, 2)	30m 12s
Lint: PHP	43s
Lint: CSS	0s
Static Analysis: PHP	1m 12s
Unit test: JS	1m 3s
Feature tests: PHP 7.4, WP latest	3m 1s
Feature tests: PHP 8.3, WP trunk	3m 5s
Unit test: PHP 8.0, WP latest	3m 17s
Feature tests: PHP 8.2, WP trunk	2m 55s
Unit test: PHP 8.3, WP trunk	2m 56s
Feature tests: PHP 8.1, WP trunk	3m 10s
Unit test: PHP 8.2, WP trunk	7m 6s
Feature tests: PHP 8.0, WP latest	2m 56s
Unit test: PHP 8.1, WP trunk	2m 59s
Feature tests: PHP 7.4, WP 6.5	2m 56s
Unit test: PHP 8.0, WP trunk	2m 55s
Unit test (with coverage): PHP 8.0, WP latest	5m 5s
Unit test: PHP 8.0, WP latest	2m 38s
Build: ${{ matrix.build }} build ZIP	0s
Unit test: PHP 7.4, WP latest	4m 12s
Unit test: PHP 7.4, WP latest	2m 40s
Unit test: PHP 7.4, WP 6.5	3m 30s
Unit test: PHP 7.4, WP 6.5	2m 44s
Upload plugin ZIPs to Google Cloud Storage	0s
Comment on PR with links to plugin ZIPs	0s
	1h 38m 30s

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