Update iam_workload_identity_provider.md

[jmeisele]

✏️ missing equals sign in docs

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[pierluc-codes]

@jmeisele I think you have to run a command ot regeneate the doc

Unexpected difference in directories after code generation. Run 'go generate' command and commit.
make: *** [GNUmakefile:80: gencheck] Error 1

[pierluc-codes]

@jmeisele can you revert the change to go.sum? i dont think this is expected.

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