Bump 2.5.3-alpha #1566

Job	Run time
Pre run	3s
Build: dev build ZIP	58s
E2E test: JS (1, 2)	10m 24s
Lint: CSS	0s
Build: prod build ZIP	1m 28s
Feature tests: PHP 7.4, WP latest	1m 48s
E2E test: JS (2, 2)	9m 46s
Feature tests: PHP 8.3, WP trunk	1m 42s
Lint: JS	0s
Feature tests: PHP 8.2, WP trunk	1m 53s
Feature tests: PHP 8.1, WP trunk	1m 55s
Lint: PHP	56s
Static Analysis: PHP	45s
Feature tests: PHP 8.0, WP latest	1m 54s
Feature tests: PHP 7.4, WP 5.3	1m 49s
Unit test: JS	0s
Unit test: PHP 8.0, WP latest	1m 50s
Unit test: PHP 8.3, WP trunk	1m 58s
Unit test: PHP 8.2, WP trunk	1m 54s
Unit test: PHP 8.1, WP trunk	2m 17s
Unit test: PHP 8.0, WP trunk	1m 58s
Unit test (with coverage): PHP 8.0, WP latest	3m 57s
Unit test: PHP 8.0, WP latest	1m 30s
Unit test: PHP 7.4, WP latest	2m 3s
Unit test: PHP 7.4, WP latest	1m 28s
Unit test: PHP 7.4, WP 5.3	1m 50s
Unit test: PHP 7.4, WP 5.3	1m 28s
Upload plugin ZIPs to Google Cloud Storage	21s
Comment on PR with links to plugin ZIPs	0s
	57m 55s

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