Fix publishing udfs that use backticks in identifiers (#4225)

* Fix publishing udfs that use backticks in identifiers

* Update bigquery_etl/routine/parse_routine.py

Co-authored-by: Sean Rose <1994030+sean-rose@users.noreply.github.com>

---------

Co-authored-by: Sean Rose <1994030+sean-rose@users.noreply.github.com>

bigquery_etl/routine/parse_routine.py

@@ -191,7 +191,12 @@ class RawRoutine:
         routines = get_routines(project)
         dependencies = []
         for udf in routines:
-            if udf["name"] in "\n".join(definitions):
+            udf_re = re.compile(
+                r"\b"
+                + r"\.".join(f"`?{name}`?" for name in udf["name"].split("."))
+                + r"\("
+            )
+            if udf_re.search("\n".join(definitions)):
                 dependencies.append(udf["name"])
 
         dependencies.extend(re.findall(TEMP_UDF_RE, "\n".join(definitions)))