Try using --base-directory instead.

Author: dlemstra

actions/code-signing/action.yml

@@ -44,10 +44,11 @@ runs:
       shell: pwsh
       run: |
         dotnet tool run sign code trusted-signing `
+          -base-directory ${{inputs.directory}} `
           --trusted-signing-account ImageMagick `
           --trusted-signing-certificate-profile ImageMagick `
           --trusted-signing-endpoint https://eus.codesigning.azure.net `
           --azure-credential-type azure-cli `
           --verbosity information `
           *.exe *.dll
-      working-directory: ${{inputs.directory}}
+      working-directory: ${{ github.action_path }}