updated /etc/passwd matcher

there were few FNs because of the number

http/cves/2021/CVE-2021-43798.yaml

@@ -20,7 +20,7 @@ info:
     epss-score: 0.97083
   metadata:
     max-request: 3
-    verified: true
+    verified: "true"
     shodan-query: title:"Grafana"
   tags: cve,cve2021,grafana,lfi
 
@@ -36,7 +36,7 @@ http:
     matchers:
       - type: regex
         regex:
-          - 'root:.*:0:0:'
+          - 'root:.*:0:([0-9]+):'
           - '\/tmp\/grafana\.sock'
           - '\[(fonts|extensions|Mail|files)\]'
         condition: or