Fix Foldable1 instance; update CI to v0.14.0-rc5 (#43)

* Update CI to v0.14.0-rc5

* Remove 'fold1' member in 'Foldable1' instance

Author: JordanMartinez

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
 
       - uses: purescript-contrib/setup-purescript@main
         with:
-          purescript: "0.14.0-rc3"
+          purescript: "0.14.0-rc5"
 
       - uses: actions/setup-node@v1
         with:

src/Data/Tuple.purs

@@ -150,7 +150,6 @@ instance foldableTuple :: Foldable (Tuple a) where
 
 instance foldable1Tuple :: Foldable1 (Tuple a) where
   foldMap1 f (Tuple _ x) = f x
-  fold1 (Tuple _ x) = x
   foldr1 _ (Tuple _ x) = x
   foldl1 _ (Tuple _ x) = x