use count_bytes_reader from plugin-sdk-go (#92553)

* use count_bytes_reader from plugin-sdk-go

* run `make update-workspace`

* update postgres tests

* update mysql tests

* time back to utc

* make update-workspace done

---------

Co-authored-by: Kyle Brandt <kyle@grafana.com>

pkg/tsdb/grafana-postgresql-datasource/testdata/time_series/convert_to_float64.golden.jsonc

@@ -4,7 +4,7 @@
 //      "type": "timeseries-wide",
 //      "typeVersion": [
 //          0,
-//          0
+//          1
 //      ],
 //      "executedQueryString": "SELECT * FROM tbl"
 //  }
@@ -30,7 +30,7 @@
           "type": "timeseries-wide",
           "typeVersion": [
             0,
-            0
+            1
           ],
           "executedQueryString": "SELECT * FROM tbl"
         },