Attempt to add userid package to stackage

No idea if I am doing this right.

build-constraints.yaml

@@ -1735,6 +1735,9 @@ packages:
 
     "Timothy Klim <stackage@timothyklim.com> @TimothyKlim":
         - pkcs10
+    
+    "Jeremy Shaw <jeremy@n-heptane.com> @stepcut":
+        - userid
 
     "Stackage upper bounds":
         # https://github.com/fpco/stackage/issues/537
@@ -2365,5 +2368,7 @@ github-users:
         - mokus0
     haskell-game:
         - ocharles
+    Happstack:
+        - stepcut
 
 # end of github-users