Resolve dependency breakage

Got this error when building the project:
```
Configuring semigroupoids-5.0.1...
setup: At least the following dependencies are missing:
tagged >=0.8.5 && <1 && ==0.8.3
```

This was caused by a revision done to some old Stackage releases:
ekmett/semigroupoids#71
commercialhaskell/stackage#3185

It is fixed by relaxing the dependency constraints a bit as suggested
by @ekmett.

stack.yaml

@@ -3,3 +3,4 @@ packages:
 - '.'
 extra-deps: []
 resolver: lts-5.2
+allow-newer: true