Add JSON files for release tests

Author: harshithad0703

src/test/resources/releases/create_release1.json

@@ -0,0 +1,9 @@
+{
+  "release": {
+    "name": "First release",
+    "description": "Adding release date 2020-21-07",
+    "locked": false,
+    "archived": false
+  }
+}
+

src/test/resources/releases/create_release2.json

@@ -0,0 +1,8 @@
+{
+  "release": {
+    "name": "Second release",
+    "description": "Adding release date 2020-21-07",
+    "locked": false,
+    "archived": false
+  }
+}