fix: fix type, add shell

Author: bernokl

.github/workflows/std.yml

@@ -74,10 +74,11 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: |
-          if ! grep -qF '"@esbuild/linux-x64@npm:' yarn-project.nix ; then
-            echo >&2 'Please, make sure that they ‘yarn-project.nix’ contains “@esbuild/linux-x64@npm” (see your diff).'
-            exit 1
+          if ! grep -F '"@esbuild/linux-x64@npm:' yarn-project.nix ; then
+               echo >&2 'Please, make sure that the "yarn-project.nix" contains "@esbuild/linux-x64@npm" (see your diff).'
+               exit 1
           fi
+        shell: bash
 
   discover:
     needs: check-yarn-project-nix