Adding release/4.2.6 for spring-cloud-vault-commercial as part of joining 2099.9

Author: spring-builds

config/projects.json

@@ -387,13 +387,14 @@
     },
     "commercial": {
       "branches": {
-        "scheduled": ["4.3.x", "4.2.x", "3.1.x"],
+        "scheduled": ["release/4.2.6", "4.3.x", "4.2.x", "3.1.x"],
         "default": ["4.3.x"]
       },
       "jdkVersions": {
         "4.2.x": ["17", "21"],
         "3.1.x": ["8", "11", "17"],
-        "4.3.x": ["17", "21", "25"]
+        "4.3.x": ["17", "21", "25"],
+        "release/4.2.6": ["17", "21"]
       }
     }
   },