CANTINA-985: Deprecate `wpcom_vip_get_page_by_path()`, `wpcom_vip_term_exists()` and `wpcom_vip_get_page_by_title()` #6635

Job	Run time
WP 6.0.x, multisite: no, JP: yes, PHP: 8.1	6m 52s
WP 6.0.x, multisite: yes, JP: yes, PHP: 8.1	7m 34s
WP 6.1.x, multisite: no, JP: yes, PHP: 8.1	7m 10s
WP 6.1.x, multisite: yes, JP: yes, PHP: 8.1	6m 57s
WP 6.2.x, multisite: no, JP: yes, PHP: 8.1	6m 51s
WP 6.2.x, multisite: yes, JP: yes, PHP: 8.1	7m 30s
WP 6.3.x, multisite: no, JP: yes, PHP: 8.1	6m 56s
WP 6.3.x, multisite: yes, JP: yes, PHP: 8.1	7m 5s
WP latest, multisite: no, JP: yes, PHP: 8.1	11m 37s
WP latest, multisite: yes, JP: yes, PHP: 8.1	11m 31s
WP nightly, multisite: no, JP: yes, PHP: 8.1	7m 15s
WP nightly, multisite: yes, JP: yes, PHP: 8.1	7m 33s
WP latest, multisite: no, JP: no, PHP: 8.1	6m 22s
WP latest, multisite: yes, JP: no, PHP: 8.1	6m 23s
WP nightly, multisite: no, JP: yes, PHP: 8.2	6m 55s
WP nightly, multisite: yes, JP: yes, PHP: 8.2	7m 26s
WP nightly, multisite: no, JP: yes, PHP: 8.3	6m 58s
WP nightly, multisite: yes, JP: yes, PHP: 8.3	7m 30s
	2h 16m 25s

Provide feedback