[patch] Update OCP support dates for 4.20 and 4.18

Adjust lifecycle dates in src/mas/devops/data/ocp.yaml: for 4.20, standard_support changed from May 3, 2026 to April 21, 2027; for 4.18, standard_support changed from February 25, 2025 to August 25, 2026 and extended_support changed from August 25, 2026 to February 25, 2028. These updates align the file with the revised OCP support timelines.

Author: prveenkumr

src/mas/devops/data/ocp.yaml

@@ -11,7 +11,7 @@
 ocp_versions:
   "4.20":
     ga_date: "October 21, 2025"
-    standard_support: "May 3, 2026"
+    standard_support: "April 21, 2027"
     extended_support: "October 21, 2028"
 
   "4.19":
@@ -21,8 +21,8 @@ ocp_versions:
 
   "4.18":
     ga_date: "February 25, 2025"
-    standard_support: "February 25, 2025"
-    extended_support: "August 25, 2026"
+    standard_support: "August 25, 2026"
+    extended_support: "February 25, 2028"
 
   "4.17":
     ga_date: "October 1, 2024"