Fixed parsing with timezone and no hms

Author: jakechirsch

pandas/_libs/src/vendored/numpy/datetime/np_datetime_strings.c

@@ -742,6 +742,8 @@ int parse_iso_8601_datetime(const char *str, int len, int want_exc,
 
     /* Invalidates the component if there is more than 2 digits */
     if (sublen > 0) {
+      if (substr[0] == 'Z')
+        goto parse_timezone;
       int has_sep = 0;
       int j = 0;
       for (j = 0; j < (sublen > 2 ? 2 : sublen); ++j) {
@@ -894,6 +896,8 @@ int parse_iso_8601_datetime(const char *str, int len, int want_exc,
 
     /* Invalidates the component if there is more than 2 digits */
     if (sublen > 0) {
+      if (substr[0] == 'Z')
+        goto parse_timezone;
       int has_sep = 0;
       int j = 0;
       for (j = 0; j < (sublen > 2 ? 2 : sublen); ++j) {