bump antsibull-docs-parser to fix build issues (#3098)

Co-authored-by: Felix Fontein <[email protected]>

Author: oraNod

tests/requirements.txt

@@ -30,7 +30,7 @@ antsibull-docs==2.21.0
     # via
     #   -c tests/constraints.in
     #   -r tests/requirements.in
-antsibull-docs-parser==1.2.1
+antsibull-docs-parser==1.2.2
     # via antsibull-docs
 antsibull-docutils==1.3.0
     # via