Adds missing schemas + data for metrics to snowplow stats ping (#48476) (#48760)

* adds data + schema for metrics stats ping

* remove comment

* annotate todos

* fill in the rest of the metrics values

- and add defaults

* fix some definitions + use a single timestamp

* shuffle stuff around to appease the namespace linter

- we aren't reaching into the api API, so the linter is more of a
  formality here.

* update docstring

* fix jsonschema, maybe

* review responses

- revert changes to 1-0-0
- add metrics section to new file: 1-0-1
- bump ::instance_stats to "1-0-1"
- add tags into 1-0-1
- make the code return tags (empty for now until we know what to tag things.)

- also fix test that broke from shuffling settings around

* remove a footgun

* add tags to metrics,

add grouped_metrics to jsonschema 1-0-1

format 1-0-1

* indent

* cljfmt

* version should match filename

* update instance stats 1-0-1 schema

* require `tags` in grouped_metric + snowcat comment

* fix formatting noise

* update schema to make it valid

* remove grouped_metrics from instance_stats schema

* cljfmt appeasement

* unbin cache_num_queries_cached value

- alphabetize metrics generation

* we can now guarantee metric values will be ints

* jsonschema for instance_uuid, settings, and grouped_metrics

* add analytics_uuid and make it required

* lint + alphabetize instance stats json schema

* update setting key type

- add maxLength to some strings

* lint jsonschema

- Add description to setting.items.tags
- add maxLength, and {min,max}imum to setting.items.value

* Bump instance stats to 2-0-0

- remove analytics_uuid string length == 36 check
- adds assertion to ensure required fields are set (and it passes)
- adds info for embedding settings

* adds a grouped-metric to stats ping

- adds length info to the schema to pass jsonschema linting

* cljfmt

Co-authored-by: bryan <bryan.maass@gmail.com>