ci: properly replace empty spaces with -

.github/workflows/release.yml

@@ -140,8 +140,8 @@ jobs:
         name: Get executable into signing folder
         # we replace empty spaces in the filename with -
         run: |
-          find out/make/ '*.exe' -exec rename 's/ /-/g' {} +
-          find out/make/ '*.exe' -exec cp -v {} windows_signing \;
+          find out/make -type f -name '*.exe' -exec bash -c 'mv "$1" "${1// /-}"' _ {} \;
+          find out/make/ -type f -name '*.exe' -exec cp -v {} windows_signing \;
           ls *.exe
           EXE_FILE=$(ls *.exe 2>/dev/null | head -n 1)
           echo "Found .exe file: $EXE_FILE"