Merge pull request #92609 from eohartman/osdocs-13662-1

OSDOCS-13662: Adding ROSA & OSD Life Cycle entry for version 4.18

Author: xenolinux

modules/life-cycle-dates.adoc

@@ -15,12 +15,14 @@ endif::[]
 |===
 |Version    |General availability   |End of life
 ifdef::rosa-with-hcp[]
+|4.18       |Feb 26, 2025           |Jun 21, 2026
 |4.17       |Oct 14, 2024           |Feb 14, 2026
 |4.16       |Jul 2, 2024            |Nov 2, 2025
 |4.15       |Feb 27, 2024           |Jun 30, 2025
 |4.14       |Dec 4, 2023            |May 1, 2025
 endif::rosa-with-hcp[]
 ifndef::rosa-with-hcp[]
+|4.18       |Feb 26, 2025           |Jun 21, 2026
 |4.17       |Oct 14, 2024           |Feb 14, 2026
 |4.16       |Jul 2, 2024            |Nov 2, 2025
 |4.15       |Feb 27, 2024           |Jun 30, 2025