Readd package_repository setting lost via copy paste

Signed-off-by: brycegbrazen <[email protected]>

src/rezplugins/package_repository/rezconfig.py

@@ -1,4 +1,10 @@
 filesystem = {
+    # The mechanism used to create the lockfile. If set to 'default', this will
+    # use hardlinks if the 'os.link' method is present, otherwise mkdir is used.
+    # It can also be explicitly set to use only 'hardlink', or only 'mkdir'.
+    # Valid options are 'default', 'mkdir', or 'hardlink'
+    "file_lock_type": "default",
+
     # The timeout to use when creating file locks. This is done when a variant is
     # installed into an existing package, to prevent multiple file writes at
     # once (which could result in a variant install getting lost). The timeout