Metrics: Add algod version to metrics

[hsoerensen]

Summary

This PR adds algod version information to metrics exported. This will allow querying relay servers to see if they have updated to required / requested versions, and potentially be used to enforce SLA's around patching.

This PR does introduce a new namespace 'environment' for metrics, with reasoning being that this namespace is for exposing app-level runtime environment information, which currently is not exposed (outside of what Prometheus's node_exporter may provide at an OS level).

One label is used (version). I was thinking of splitting this up into labels with version (major.minor.patch), build, OS, arch, etc - however without having a clear use-case as to why this would be required I opted for simplicity. Happy to adjust as designated labels would be a more stable interface for anyone needing these data, if that is expected.

Also note that the string is VERY similar to a duplicated user-agent header strings in wsNetwork.go and p2p.go (e.g. https://github.com/algorand/go-algorand/blob/master/network/p2p/p2p.go#L85), however the existing format makes it more difficult to parse the string in an observability platform, if goal is to map back to release versions published (e.g., 3.24.0) vs parsing in the format contained in this PR. I opted not to change user-agent strings as that could be seen as a breaking change, in case anyone parses these.

Test Plan

• I ran a local algod version, and confirmed that the data was in there.
• Ran make test with no failures

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Project coverage is 55.86%. Comparing base (24382d8) to head (c2c11c1).
Report is 1 commits behind head on master.

Files	Patch %	Lines
daemon/algod/server.go	0.00%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #6003      +/-   ##
==========================================
- Coverage   55.87%   55.86%   -0.01%     
==========================================
  Files         482      482              
  Lines       68593    68602       +9     
==========================================
- Hits        38324    38323       -1     
- Misses      27658    27673      +15     
+ Partials     2611     2606       -5     

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[gmalouf]

This will work as-is, but you may want to use a gauge rather than a counter semantically.

[algorandskiy]

I think this is too much info for metric but I guess it could work. Maybe /status is a better fit for it? I defer to others to weigh it in.

[cce]

Could you split up the metric into multiple labels and use a gauge?