Add empty line to fix the CI gen

[ffjlabo]

What this PR does / why we need it:

This PR expects to fix the CI gen fails.
This is just a workaround to pass CI.

How to reproduce

• build the image for with linux/amd64 docker buildx.
• Fix Makefile and execute make gen/code.

docker buildx build --platform linux/amd64 tool/codegen -t codegen-buildx-amd

Fix the Makefile like this↓

gen/code:
	# NOTE: Specify a specific version temporally until the next release.
	docker run --rm -v ${PWD}:/repo -it --entrypoint ./tool/codegen/codegen.sh codegen-buildx-amd  /repo #v0.44.0-38-g7229285

Which issue(s) this PR fixes:

Related to #4970

Does this PR introduce a user-facing change?:

• How are users affected by this change:
• Is this breaking change:
• How to migrate (if breaking change):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 29.32%. Comparing base (7e27cad) to head (7455ff7).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4972   +/-   ##
=======================================
  Coverage   29.32%   29.32%           
=======================================
  Files         323      323           
  Lines       40984    40984           
=======================================
  Hits        12018    12018           
  Misses      28005    28005           
  Partials      961      961           

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[Warashi]

I reproduced the fix on my local machine!
Thank you!

[t-kikuc]

Thanks, what a strange problem...

[ffjlabo]

Thank you both 🙏
I will check the result on the #4970