workflows: check if THREADCOUNT= doesn't fail so often

Author: Zabrimus

.github/workflows/build-vdrsternelec.yml

@@ -250,7 +250,7 @@ jobs:
           df -h
                          
           # build all                    
-          if ! AUTOREMOVE="yes" ./build.sh -config ${{ inputs.config }} ${EXTRAS} ${ADDONS} ${EXTRA_PARAMETER}; then
+          if ! THREADCOUNT= AUTOREMOVE="yes" ./build.sh -config ${{ inputs.config }} ${EXTRAS} ${ADDONS} ${EXTRA_PARAMETER}; then
               BUILD_FAILED="true"
           fi