Add ci.json for matrix specs

Author: vjovanov

ci.json

@@ -0,0 +1,14 @@
+{
+  "generateMatrixMatchingCoordinates": {
+    "java": ["17", "latest-ea"],
+    "os": ["ubuntu-latest"]
+  },
+  "generateChangedCoordinatesMatrix": {
+    "java": ["17", "21", "25", "latest-ea"],
+    "os": ["ubuntu-latest"]
+  },
+  "generateInfrastructureChangedCoordinatesMatrix": {
+    "java": ["17", "21", "25", "latest-ea"],
+    "os": ["ubuntu-latest"]
+  }
+}