Add support for strict mode in Specmatic configuration (SchemaStore#5137)

* Add support for strict mode in Specmatic configuration

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---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: joelrosario

src/negative_test/specmatic/wrong-stub-strict-mode-type.json

@@ -0,0 +1,7 @@
+{
+  "contracts": [],
+  "stub": {
+    "strictMode": "enabled"
+  },
+  "version": 2
+}

src/negative_test/specmatic/wrong-test-strict-mode-type.json

@@ -0,0 +1,7 @@
+{
+  "contracts": [],
+  "test": {
+    "strictMode": "enabled"
+  },
+  "version": 2
+}

src/schemas/json/specmatic.json

@@ -458,6 +458,10 @@
         "timeoutInMilliseconds": {
           "type": ["integer", "null"],
           "description": "Test timeout in milliseconds"
+        },
+        "strictMode": {
+          "type": ["boolean", "null"],
+          "description": "Whether to enable strict mode for contract testing"
         }
       }
     },
@@ -501,6 +505,10 @@
         "hotReload": {
           "type": ["string", "null"],
           "description": "Hot reload configuration"
+        },
+        "strictMode": {
+          "type": ["boolean", "null"],
+          "description": "Whether to enable strict mode for stubbing"
         }
       }
     },

src/test/specmatic/specmatic.json

@@ -140,13 +140,15 @@
     "generative": true,
     "hotReload": "enabled",
     "includeMandatoryAndRequestedKeysInResponse": true,
-    "startTimeoutInMilliseconds": 10000
+    "startTimeoutInMilliseconds": 10000,
+    "strictMode": true
   },
   "test": {
     "allowExtensibleSchema": false,
     "resiliencyTests": {
       "enable": "all"
     },
+    "strictMode": false,
     "timeoutInMilliseconds": 30000,
     "validateResponseValues": true
   },