Fix shell

Author: pepeiborra

.github/workflows/build.yml

@@ -133,6 +133,7 @@ jobs:
     - name: Compress wrapper binary
       if: matrix.ghc == '8.10.7'
       id: compress_wrapper_binary
+      shell: bash
       run: |
         HLS_WRAPPER_BUILD=$(find dist-newstyle \( -name 'hls-wrapper' -o -name 'hls-wrapper.exe' \) -type f)
         HLS_WRAPPER=haskell-language-server-wrapper