Set up staticcheck linter for BFF

[Griffin-Sullivan]

Description

Linting the BFF folder with staticcheck and adding a step to run the linter in the BFF GitHub Action.

How Has This Been Tested?

Make sure the action passes and tests pass.

Merge criteria:

• All the commits have been signed-off (To pass the DCO check)

• The commits have meaningful messages; the author will squash them after approval or in case of manual merges will ask to merge with squash.
• Testing instructions have been added in the PR body (for PRs involving changes that are not immediately obvious).
• The developer has manually tested the changes and verified that the changes work.
• Code changes follow the kubeflow contribution guidelines.

If you have UI changes

• The developer has added tests or explained why testing cannot be added.
• Included any necessary screenshots or gifs if it was a UI change.
• Verify that UI/UX changes conform the UX guidelines for Kubeflow.

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[ederign]

LGTM to me and thanks for the cleanup! Just want to double check that with Matteo!

[ederign]

@tarilabs is there a policy to add third part actions on kubeflow?

[lucferbux]

/lgtm

[google-oss-prow]

@lucferbux: changing LGTM is restricted to collaborators

In response to this:

/lgtm

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[ederign]

@Griffin-Sullivan this will need a rebase.

[Griffin-Sullivan]

I've decided to use a different linting tool for the BFF so I'm going to close this and open another.