include ncurses-static on apline for ghc#17878

I don't know if this is the right fix, but I don't see a way to try it out without a merge.

While doing a static CI build of GHC, I get errors about not being able to find an ncurses library, even though it's found fine in a non-static (dynamically linked) build. Alpine Linux has a separate ncurses-static package, so I thought I'd try that.

x86_64-linux-alpine/Dockerfile

@@ -14,6 +14,7 @@ RUN echo "Installing GHC build dependencies..." && \
         libffi-dev=~3.2 \
         musl-dev=~1 \
         ncurses-dev=~6.1 \
+        ncurses-static=~6.1 \
         python3=~3.8 \
         py3-sphinx=~2.2 \
         zlib-dev=~1.2 \