Fix: Update pynspect version. (Redmine issue: #7566)

conf/requirements.pip

@@ -28,7 +28,7 @@ rrdtool==0.1.15
 pyyaml==5.3.1
 pydgets==0.9
 pyzenkit==0.61
-pynspect==0.17
+pynspect==0.19
 ipranges==0.1.10
 typedcols==0.1.13
 idea-format==0.1.11