feat: configurable metrics

[pboros]

• Quantiles reported are configurable, example:

metrics:
  quantiles:
    - 0.5
    - 0.95
    - 0.99

The default is 0.5 and 0.95.

• Individual metrics groups are configurable, example:

metrics:
  fdb:
    enabled: false

• The configuration options provided are granular enough to account for all the use cases. For example, for size metrics, the collections of namespace, db and collection sizes are configurable separately.

• Histograms can be enabled for metric groups (disabled by default)

• Tags for metric groups can be filtered.
  Example:

metrics:
  requests:
    filtered_tags:
      - grpc_service

A filtered tag is not included in the metrics provided.

• The grpc_service and the grpc_service_type tags are removed, they were redundant with grpc_method.

[codecov-commenter]

Codecov Report

Base: 30.07% // Head: 30.01% // Decreases project coverage by -0.05% ⚠️

Coverage data is based on head (106fcce) compared to base (1d24c42).
Patch coverage: 33.66% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #573      +/-   ##
==========================================
- Coverage   30.07%   30.01%   -0.06%     
==========================================
  Files          89       89              
  Lines       10552    10659     +107     
==========================================
+ Hits         3173     3199      +26     
- Misses       7078     7157      +79     
- Partials      301      303       +2     

Impacted Files	Coverage Δ
server/metrics/fdb.go	94.59% <ø> (-0.53%)	⬇️
server/metrics/query.go	66.66% <0.00%> (ø)
server/metrics/requests.go	100.00% <ø> (ø)
server/metrics/search.go	100.00% <ø> (ø)
server/metrics/session.go	100.00% <ø> (ø)
server/middleware/auth.go	30.43% <0.00%> (ø)
server/middleware/measure.go	0.00% <0.00%> (ø)
server/middleware/middleware.go	0.00% <0.00%> (ø)
server/request/request.go	16.78% <0.00%> (+0.24%)	⬆️
server/services/v1/sessions.go	5.64% <0.00%> (ø)
... and 5 more

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[tigrisdata-argocd-bot]

🎉 This PR is included in version 1.0.0-beta.5 🎉

The release is available on GitHub release

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