JBDS-4043 Update cygwin version to 2.6.0

Author: dgolovin

requirements.json

@@ -37,9 +37,9 @@
     "name": "Cygwin",
     "description": "A distribution of popular GNU and other Open Source tools running on Microsoft Windows",
     "bundle": "always",
-    "version": "2.5.2",
-    "url": "https://developers.redhat.com/redirect/to/cygwin-installer-2.5.2.download",
-    "filename": "cygwin_2.5.2.exe",
+    "version": "2.6.0",
+    "url": "https://cygwin.com/setup-x86_64.exe",
+    "filename": "cygwin_2.6.0.exe",
     "sha256sum": "58f9f42f5dbd52c5e3ecd24e537603ee8897ea15176b7acdc34afcef83e5c19a",
     "virusTotalReport": "https://virustotal.com/en/file/58f9f42f5dbd52c5e3ecd24e537603ee8897ea15176b7acdc34afcef83e5c19a/analysis/",
     "vendor": "Community Project"