Bump node.extend from 1.1.6 to 1.1.8

Bumps [node.extend](https://github.com/dreamerslab/node.extend) from 1.1.6 to 1.1.8.
- [Release notes](https://github.com/dreamerslab/node.extend/releases)
- [Changelog](https://github.com/dreamerslab/node.extend/blob/master/History.md)
- [Commits](https://github.com/dreamerslab/node.extend/compare/v1.1.6...v1.1.8)

Signed-off-by: dependabot[bot] <support@github.com>

package-lock.json

@@ -905,6 +905,12 @@
                 "rimraf": "2"
             }
         },
+        "function-bind": {
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
+            "integrity": "sha512-yIovAzMX49sF8Yl58fSCWJ5svSLuaibPxXQJFLmBObTuCr0Mf1KiPopGM9NiFjiYBCbfaa2Fh6breQ6ANVTI0A==",
+            "dev": true
+        },
         "generate-function": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/generate-function/-/generate-function-2.0.0.tgz",
@@ -1456,6 +1462,15 @@
                 "pinkie-promise": "^2.0.0"
             }
         },
+        "has": {
+            "version": "1.0.3",
+            "resolved": "https://registry.npmjs.org/has/-/has-1.0.3.tgz",
+            "integrity": "sha512-f2dvO0VU6Oej7RkWJGrehjbzMAjFp5/VKPp5tTpWIV4JHHZK1/BxbFRtf/siA2SWTe09caDmVtYYzWEIbBS4zw==",
+            "dev": true,
+            "requires": {
+                "function-bind": "^1.1.1"
+            }
+        },
         "has-ansi": {
             "version": "2.0.0",
             "resolved": "https://registry.npmjs.org/has-ansi/-/has-ansi-2.0.0.tgz",
@@ -2185,12 +2200,13 @@
             "integrity": "sha1-MjI8zLRsn78PwRgS1FAhzDHTJbs="
         },
         "node.extend": {
-            "version": "1.1.6",
+            "version": "1.1.8",
-            "resolved": "https://registry.npmjs.org/node.extend/-/node.extend-1.1.6.tgz",
+            "resolved": "https://registry.npmjs.org/node.extend/-/node.extend-1.1.8.tgz",
-            "integrity": "sha1-p7iCyC1sk6SGOlUEvV3o7IYli5Y=",
+            "integrity": "sha512-L/dvEBwyg3UowwqOUTyDsGBU6kjBQOpOhshio9V3i3BMPv5YUb9+mWNN8MK0IbWqT0AqaTSONZf0aTuMMahWgA==",
             "dev": true,
             "requires": {
-                "is": "^3.1.0"
+                "has": "^1.0.3",
+                "is": "^3.2.1"
             }
         },
         "normalize-path": {