* [Breaking Change] Enhance JDBC storage through merging tables and managing day-based table rolling.
* [Breaking Change] Sharding-MySQL implementations and tests get removed due to we have the day-based rolling mechanism by default
* [**Breaking Change**]: Remove prometheus-fetcher plugin, please use OpenTelemetry to scrape Prometheus metrics and
set up SkyWalking OpenTelemetry receiver instead.
* BugFix: histogram metrics sent to MAL should be treated as OpenTelemetry style, not Prometheus style:
```
(-infinity, explicit_bounds[i]] for i == 0
(explicit_bounds[i-1], explicit_bounds[i]] for 0 < i < size(explicit_bounds)
(explicit_bounds[i-1], +infinity) for i == size(explicit_bounds)
```
* Fix IoTDB Storage Option insert null index value.
* Set the default value of SW_STORAGE_IOTDB_SESSIONPOOL_SIZE to 8
* Bump up iotdb-session to 0.12.4
* Update doc
kezhenxu94
Jiajing LU
刘威
吴晟 Wu Sheng
mrproliu