Broken YAML formatting in automatically generated PRs

[NayamAmarshe]

Every time the external data checker creates a PR, it wrongly formats the YAML file, which causes the build to fail.

- --set-key=Categories --set-value="ImageProcessing;RasterGraphics;Graphics;" \
+ --set-key=Categories --set-value="ImageProcessing;RasterGraphics;Graphics;"
+        \

This issue is occurring again and again in our repository.

When I manually change the updated line, to have the \ character in the same line, the build is successful and I'm able to merge.

[bbhtt]

x-checker has support for max_line_length in editorconfig, try adding that and run it locally to check? Or you can break it up in parts