Update gotests in makefile to latest version

[liamfallon]

Update the gotests image in the makefile to be compatible with the latest go version.

[efiacor]

Clever. Seems the change doesn't trigger a unit test run. Hmmm
https://github.com/nephio-project/porch/blob/main/.prow.yaml#L4

[liamfallon]

Clever. Seems the change doesn't trigger a unit test run. Hmmm https://github.com/nephio-project/porch/blob/main/.prow.yaml#L4

Yes, you'd want to run the tests in this case.

[efiacor]

/approve
/lgtm

[nephio-prow]

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[efiacor]

Clever. Seems the change doesn't trigger a unit test run. Hmmm https://github.com/nephio-project/porch/blob/main/.prow.yaml#L4

Yes, you'd want to run the tests in this case.

I pushed a change in subsequent PR #50

[efiacor]

/lgtm

[efiacor]

/lgtm