fix typo err

[ruifaling]

What this PR does / why we need it:

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes # 618

Additional information
This is just a minor typo err about bootstrapKubeconfigDataStr

Special notes for your reviewer

[vmwclabot]

@ruifaling, you must sign our contributor license agreement before your changes are merged. Click here to sign the agreement. If you are a VMware employee, read this for further instruction.

[codecov-commenter]

Codecov Report

Merging #619 (1e973dc) into main (49a9cdb) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #619   +/-   ##
=======================================
  Coverage   68.99%   68.99%           
=======================================
  Files          19       19           
  Lines        1964     1964           
=======================================
  Hits         1355     1355           
  Misses        497      497           
  Partials      112      112           

Impacted Files	Coverage Δ
...s/infrastructure/bootstrapkubeconfig_controller.go	58.49% <100.00%> (ø)

[anusha94]

thank you!

[anusha94]

@ruifaling Please sign the CLA

[ruifaling]

@shubham14bajpai @anusha94 ，thanks for your review! And I have signed the CLA,is there anything other I can do?This is my first pr about this project. I will be very happy to receive your guidance.

[vmwclabot]

@ruifaling, VMware has rejected your signed contributor license agreement. The change has already been merged, but it will be backed out by the project maintainers if the agreement is not resigned in a timely manner. Click here to resign the agreement.

[vmwclabot]

@ruifaling, VMware has rejected your signed contributor license agreement. The change has already been merged, but it will be backed out by the project maintainers if the agreement is not resigned in a timely manner. Click here to resign the agreement.

[vmwclabot]

@ruifaling, VMware has rejected your signed contributor license agreement. The change has already been merged, but it will be backed out by the project maintainers if the agreement is not resigned in a timely manner. Click here to resign the agreement.