Merge pull request #121 from vicamo/for-upstream/add-ubuntu-impish

Add Ubuntu Impish

Author: tianon

ubuntu/impish/Dockerfile

@@ -63,6 +63,14 @@
       ""
     ]
   },
+  "ubuntu/impish": {
+    "suite": "21.10",
+    "variants": [
+      "curl",
+      "scm",
+      ""
+    ]
+  },
   "ubuntu/xenial": {
     "suite": "16.04",
     "variants": [