Fix: (org-ql-regexp-part-ts-date) Allow punctuation in day-of-week

Fixes <https://github.com/alphapapa/org-ql/issues/432>.  Closes
<https://github.com/alphapapa/org-ql/pull/435>.

Reported-by: Florian D. <https://github.com/neurolit>

org-ql.info

@@ -1089,6 +1089,11 @@ File: README.info,  Node: 087-pre,  Next: 086,  Up: Changelog
      (https://github.com/alphapapa/org-ql/pull/237) and #371
      (https://github.com/alphapapa/org-ql/issues/371).  Thanks to Ihor
      Radchenko (https://github.com/yantar92).)
+   • Timestamps with day-of-the-week abbreviations are matched more
+     flexibly (allowing, e.g.  a period in French locales).  (See #429
+     (https://github.com/alphapapa/org-ql/discussions/429), #432
+     (https://github.com/alphapapa/org-ql/issues/432).  Thanks to
+     Florian D.  (https://github.com/neurolit) for reporting.)
    • Command ‘org-ql-search’ did not narrow properly when called
      interactively.
 
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