Update to use the JSON extractor for nextcloud-owncloud-detect.yaml (#8719)

* Update to use the JSON extractor

* fix regex

* word matcher + json extractor

---------

Co-authored-by: Dhiyaneshwaran <leedhiyanesh@gmail.com>
Co-authored-by: sandeep <8293321+ehsandeep@users.noreply.github.com>

http/technologies/nextcloud-owncloud-detect.yaml

@@ -2,7 +2,7 @@ id: owncloud-status-page
 
 info:
   name: Owncloud StatusPage detection
-  author: myztique
+  author: myztique,invisiblethreat
   severity: info
   metadata:
     verified: true
@@ -16,17 +16,15 @@ http:
       - "{{BaseURL}}/status.php"
 
     matchers:
-      - type: regex
+      - type: word
         part: body
-        regex:
-          - '{"installed":(?:true|false),"maintenance":(?:true|false),"version":"[0-9\.]*","versionstring":"[a-z-A-Z0-9\.]*","edition":"[\d\D]*"}'
+        words:
+          - '"versionstring":'
+          - '"installed":'
+          - '"edition":'
+        condition: and
 
     extractors:
-      - type: regex
-        part: body
-        name: version
-        group: 1
-        regex:
-          - '{[\d\D]*"version":"([0-9\.]+)"'
-
-# digest: 4a0a00473045022100f3414071ecfd36084121e102dde43f6816d4f5bf9af4653cab8e3f50914aa7d4022002503f4e4f126a0581b1d1731362eaf5b67e9aace6301b608d4a2f24f89d4609:922c64590222798bb761d5b6d8e72950
+      - type: json
+        json:
+          - .version