fix(policy): rename unsafe rpcs for aligned casbin action determination (#1067)

5th PR for #115 

Makes all RPC names on the unsafe services also start with Update to
drive the casbin action definition matching logic:
[main/service/internal/auth/authn.go#L289-L290](https://github.com/opentdf/platform/blob/main/service/internal/auth/authn.go?rgh-link-date=2024-07-02T00%3A18%3A56Z#L289-L290)

Splitting out from #1066 due to the need to publish `/protocol/go`
module dependency for consumption upstream in `service` and `sdk`
modules.

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Co-authored-by: David Mihalcik <[email protected]>

Author: jakedoublev