Update scanners-headers.txt
Update scanners-headers.txt

Scans in the wild containing: 
X-Scanner: Netsparker 
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.170 Safari/537.36 Netsparker

https://www.netsparker.com/web-vulnerability-scanner/
coreruleset/coreruleset,SpiderLabs/owasp-modsecurity-crs,umarfarook882/owasp-modsecurity-crs,coreruleset/coreruleset,SpiderLabs/owasp-modsecurity-crs,umarfarook882/owasp-modsecurity-crs,SpiderLabs/owasp-modsecurity-crs,coreruleset/coreruleset,SpiderLabs/owasp-modsecurity-crs,coreruleset/coreruleset,SpiderLabs/owasp-modsecurity-crs,umarfarook882/owasp-modsecurity-crs,umarfarook882/owasp-modsecurity-crs,SpiderLabs/owasp-modsecurity-crs,umarfarook882/owasp-modsecurity-crs,SpiderLabs/owasp-modsecurity-crs,coreruleset/coreruleset,coreruleset/coreruleset