Update to pip-run 6.1

Author: jaraco

src/pip/_vendor/pip_run/scripts.py

@@ -20,12 +20,9 @@
 
 class Dependencies(list):
     index_url = None
-    dependency_links = []
 
     def params(self):
         prefix = ['--index-url', self.index_url] if self.index_url else []
-        for link in self.dependency_links:
-            prefix.extend(['--find-links', link])
         return prefix + self
 
 
@@ -79,12 +76,6 @@ def read(self):
             deps.index_url = self._read('__index_url__')
         except Exception:
             pass
-        try:
-            raw_links = self._read('__dependency_links__')
-        except Exception:
-            pass
-        else:
-            deps.dependency_links = list(pkg_resources.yield_lines(raw_links))
         return deps
 
     def _read(self, var_name):

src/pip/_vendor/vendor.txt

@@ -9,7 +9,7 @@ ipaddress==1.0.23  # Only needed on 2.6 and 2.7
 msgpack==0.6.2
 packaging==20.1
 pep517==0.7.0
-pip-run==6
+pip-run==6.1
 progress==1.5
 pyparsing==2.4.6
 pytoml==0.1.21