py-logical-unification: add missing build dependency

Closes: https://trac.macports.org/ticket/73156

Author: reneeotten

python/py-logical-unification/Portfile

@@ -26,6 +26,9 @@ checksums           rmd160  dbbc4290aa4d5806525af1721c108b37c8ea496e \
 python.versions     39 310 311 312 313
 
 if {${name} ne ${subport}} {
+    depends_build-append \
+                    port:py${python.version}-setuptools_scm
+
     depends_lib-append \
                     port:py${python.version}-toolz \
                     port:py${python.version}-multipledispatch