Update NEWS for pacman-6.0.1 release

Signed-off-by: Allan McRae <allan@archlinux.org>

NEWS

 VERSION         DESCRIPTION
 -----------------------------------------------------------------------------
+6.0.1         - Prevent download error pages ending up in package files
+                (FS#71083)
+              - Give -U downloads a random .part file name if needed
+                (FS#71464)
+              - Fix downloading signatures with redirecting URLs (FS#71148)
+              - Fix double free when importing PGP keys (FS#71107)
+              - Ensure signature files are named after original file
+                following redirects (FS#71274)
+              - Order downloads by size - largest to smallest (FS#70172)
+              - Fix reproducibility of man pages (FS#71154)
+              - makepkg:
+                - Fix stripping debug symbols with binutils 2.37 (FS#71722)
+                - Export PYTHONHASHSEED for reproducible python packages
+              - pacman-key:
+                - Quieten trust db checks.
 6.0.0         - internal downloader can retrieve files in parallel (FS#20056)
               - an additional progress bar is added to track total download
                 progress.  This replaces the previous TotalDownload option.