Fix kythe-go task on restricted environment

[piyush-garg]

This will fix the task to run on restricted environments
as this task do some chown operations and fails on
environments like opneshift

Submitter Checklist

These are the criteria that every PR should meet, please check them off as you
review them:

• Includes docs (if user facing)
• Commit messages follow commit message best practices
• Yaml file complies with yamllint rules.
• Complies with Catalog Orgainization TEP, see example. Note An issue has been filed to automate this validation

  • File path follows <kind>/<name>/<version>/name.yaml

  • Has README.md at <kind>/<name>/<version>/README.md

  • Has mandatory metadata.labels - app.kubernetes.io/version the same as the <version> of the resource

  • Has mandatory metadata.annotations tekton.dev/pipelines.minVersion

  • mandatory spec.description follows the convention

      ```
    
      spec:
        description: >-
          one line summary of the resource
    
          Paragraph(s) to describe the resource.
      ```
    

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for more details.

---

[vdemeester]

/meow

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[piyush-garg]

Error is

Merging compilations into /workspace/output/compilations.kzip
chown: changing ownership of '/workspace/output/compilations.kzip': Operation not permitted
chown: changing ownership of '/workspace/output': Operation not permitted

[vinamra28]

/lgtm
sorry for the ping @vdemeester

[tekton-robot]

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