CI: try skipping just released version of coverage

Author: tacaswell

requirements/testing/all.txt

@@ -2,7 +2,7 @@
 
 black<24
 certifi
-coverage!=6.3
+coverage!=6.3,!=7.10.6
 psutil
 pytest!=4.6.0,!=5.4.0,!=8.1.0
 pytest-cov