Update api-screenshotapi.yaml

Fixes a false positive, ping me on Discord if you would like to talk about it.

token-spray/api-screenshotapi.yaml

@@ -2,7 +2,7 @@ id: api-screenshotapi
 
 info:
   name: ScreenshotAPI API Test
-  author: daffainfo
+  author: daffainfo, geeknik
   severity: info
   description: Create pixel-perfect website screenshots
   reference:
@@ -16,6 +16,7 @@ requests:
     path:
       - "https://shot.screenshotapi.net/screenshot?token={{token}}&url=https://example.com"
 
+    matchers-condition: and
     matchers:
       - type: word
         part: body
@@ -23,3 +24,9 @@ requests:
           - 'screenshot'
           - 'url'
         condition: and
+      - type: status
+        status:
+          - 403
+          - 401
+          - 400
+        negative: true