feat(gnoland): add version subcommand and fix RPC version

[aeddi]

Edit: I missed this PR 391938e. I’m going to switch this one to draft while I resolve the conflicts and see if there’s anything worth keeping

This PR:

• Add a gnoland version subcommand (mirrors gnokey version and gno version)
• Inject build version via ldflags for both gnoland and gnokey (Makefile + goreleaser)
• Fix NodeInfo.Version in RPC /status to report the actual software version instead of the TM2 protocol version

Before this PR, NodeInfo.Version (returned by the /status RPC endpoint) was set to the TM2 protocol version ("v1.0.0-rc.0"), which I suspect is an error/oversight. This should be the node version, not just the protocol version, which is already provided here:NodeInfo.VersionSet["bft"].

Not fully sure about these two points, but they seemed like the right thing to do:

• make install.gnokey now uses GOBUILD_FLAGS, previously only make build.gnokey injected the version via ldflags. This seemed like an oversight so I fixed it.
• NodeInfo.Software is now set to gnoland, this field existed in the struct but was never populated.

[Gno2D2]

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