Fix static linking on Windows (#403)

* Fix static linking on Windows (https://gitlab.haskell.org/ghc/ghc/-/issues/20878)

* Upgrade GHC version in Windows build

Author: Bodigrim

.github/workflows/windows_and_macOS.yml

@@ -13,7 +13,7 @@ jobs:
     strategy:
       matrix:
         os: ['windows-latest', 'macOS-latest']
-        ghc: ['8.10.5']
+        ghc: ['latest']
       fail-fast: false
     steps:
     - uses: actions/checkout@v2

text.cabal

@@ -90,12 +90,7 @@ library
                  cbits/validate_utf8.cpp
     cxx-options: -std=c++17
     cpp-options: -DSIMDUTF
-    if os(windows)
-      if arch(x86_64)
-        extra-libraries: stdc++-6 gcc_s_seh-1
-      else
-        extra-libraries: stdc++-6 gcc_s_dw2-1
-    elif os(darwin) || os(freebsd)
+    if os(darwin) || os(freebsd)
       extra-libraries: c++
     elif os(openbsd)
       extra-libraries: c++ c++abi