Snatching unwitch from andreas -> jappie

Would be easier if I could just do the bounds bumping
myself I guess.

build-constraints.yaml

@@ -223,6 +223,7 @@ packages:
         - zxcvbn-hs
         - esqueleto-postgis
         - ram
+        - unwitch
 
     "Jakob Schöttl <jakob.schoettl@intensovet.de> @schoettl":
         - bank-holiday-germany
@@ -5247,7 +5248,6 @@ packages:
         - thread-utils-finalizers
         - tls-sslkeylogfile
         - Unique
-        - unwitch
         - variant
         - webp