Fix build script error

Author: junlarsen

.github/workflows/build.yaml

@@ -58,6 +58,7 @@ jobs:
             elif [[ "$change" == "utoipa-rapidoc" && "${{ matrix.crate }}" == "utoipa-rapidoc" && $changes == false ]]; then
               changes=true
             elif [[ "$change" == "utoipa-scalar" && "${{ matrix.crate }}" == "utoipa-scalar" && $changes == false ]]; then
+              changes=true
             fi
           done < <(git diff --name-only ${{ github.sha }}~ ${{ github.sha }} | grep .rs | awk -F \/ '{print $1}')
           echo "${{ matrix.crate }} changes: $changes"