fix: increase pom.xml max line length to 210

The `<project xmlns=...>` declaration on line 2 of every pom.xml is
204 characters. The maven release-type in release-please touches all
pom files, triggering the editorconfig line-length check.

Signed-off-by: Gregor Zeitlinger <[email protected]>

Author: zeitlinger

.editorconfig

@@ -11,7 +11,7 @@ max_line_length = 200
 max_line_length = 300
 
 [pom.xml]
-max_line_length = 120
+max_line_length = 210
 
 [*.py]
 # checked by black