Revert "Don't sign scheduled builds (#1041)" (#1048)

This reverts commit bd02309.

Author: speednoisemovement

.github/workflows/build-toolchain.yml

@@ -326,7 +326,11 @@ jobs:
             echo debug_info=false >> ${GITHUB_OUTPUT}
           fi
 
-          echo signed=${{ inputs.signed }} >> ${GITHUB_OUTPUT}
+          if [[ "${{ github.event_name }}" == "schedule" || "${{ inputs.signed }}" == "true" ]]; then
+            echo signed=true >> ${GITHUB_OUTPUT}
+          else
+            echo signed=false >> ${GITHUB_OUTPUT}
+          fi
 
           echo swift_version=${{ inputs.swift_version || '0.0.0' }} | tee -a ${GITHUB_OUTPUT}
           if [[ -n "${{ inputs.swift_tag }}" ]] ; then