Merge pull request #76319 from mletalie/OSDOCS-10626

[OSDOCS-10626]: Update ROSA/OSD lifecycle pages for 4.12

Author: EricPonvelle

modules/life-cycle-dates.adoc

@@ -22,7 +22,7 @@ ifndef::rosa-with-hcp[]
 |4.15       |Feb 27, 2024           |Jun 30, 2025
 |4.14       |Oct 31, 2023           |Feb 28, 2025
 |4.13       |May 17, 2023           |Sep 17, 2024
-|4.12       |Jan 17, 2023           |May 17, 2024
+|4.12       |Jan 17, 2023           |Jul 17, 2024
 |4.11       |Aug 10, 2022           |Dec 10, 2023
 |4.10       |Mar 10, 2022           |Sep 10, 2023
 |4.9        |Oct 18, 2021           |Dec 18, 2022