feat(stat): job plugin drivers statistic

[rustatian]

Reason for This PR

closes #760
closes #761

Description of Changes

• JobsStatus informer interface.
• New stat package with jobs-related statistics.
• Go 1.17 by default.
• Stat RPC call to obtain information about pipelines and drivers.
• New protobuf messages to handle RPC Stat.
• Prometheus metrics: number of pushes, number of successfully processed jobs, number of failed jobs, number of failed pushes, workers memory.

Stat sample (WIP):

License Acceptance

By submitting this pull request, I confirm that my contribution is made under
the terms of the MIT license.

PR Checklist

[Author TODO: Meet these criteria.]
[Reviewer TODO: Verify that these criteria are met. Request changes if not]

• All commits in this PR are signed (git commit -s).
• The reason for this PR is clearly provided (issue no. or explanation).
• The description of changes is clear and encompassing.
• Any required documentation changes (code and docs) are included in this PR.
• Any user-facing changes are mentioned in CHANGELOG.md.
• All added/changed functionality is tested.

[codecov]

Codecov Report

Merging #764 (eb70b89) into master (6860326) will decrease coverage by 0.11%.
The diff coverage is 65.13%.

@@            Coverage Diff             @@
##           master     #764      +/-   ##
==========================================
- Coverage   66.39%   66.28%   -0.12%     
==========================================
  Files         126      129       +3     
  Lines       10331    10795     +464     
==========================================
+ Hits         6859     7155     +296     
- Misses       2868     3023     +155     
- Partials      604      617      +13     

Impacted Files	Coverage Δ
pkg/events/jobs_events.go	0.00% <0.00%> (ø)
pkg/pool/supervisor_pool.go	89.47% <ø> (ø)
pkg/state/process/state.go	36.11% <ø> (ø)
pkg/worker_handler/errors.go	0.00% <ø> (ø)
plugins/gzip/plugin.go	88.88% <ø> (ø)
plugins/http/plugin.go	81.02% <ø> (ø)
plugins/informer/rpc.go	64.00% <0.00%> (-9.92%)	⬇️
plugins/redis/kv/kv.go	58.28% <ø> (ø)
plugins/service/plugin.go	70.31% <ø> (ø)
utils/isolate.go	6.66% <ø> (ø)
... and 38 more

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