Post CI health reports to Slack

[nineinchnick]

The reports will look like this:

                    Job name                    | Failure ratio chart | Failure percent | Number of failed runs |            Error messages             |                          Run URLs                           
------------------------------------------------+---------------------+-----------------+-----------------------+---------------------------------------+-------------------------------------------------------------
 build-test-matrix                              | █████               |            25.0 |                     1 | [Process completed with exit code 1.] | [https://github.com/trinodb/trino/actions/runs/10654246675] 
 pt (default, suite-delta-lake-databricks133, ) | █████               |            25.0 |                     1 | [Process completed with exit code 1.] | [https://github.com/trinodb/trino/actions/runs/10654242163] 
 test (core/trino-main)                         | █████               |            25.0 |                     1 | [Process completed with exit code 1.] | [https://github.com/trinodb/trino/actions/runs/10654244819] 
 test (plugin/trino-bigquery)                   | █████               |            25.0 |                     1 | [Process completed with exit code 1.] | [https://github.com/trinodb/trino/actions/runs/10654244819] 
 test (plugin/trino-hive)                       | █████               |            25.0 |                     1 | [Process completed with exit code 1.] | [https://github.com/trinodb/trino/actions/runs/10654244819] 
(5 rows)

and

 Branch  | Interval | Success ratio chart | Success percent | Number of runs 
---------+----------+---------------------+-----------------+----------------
 master  | 1 day    | █████               |            25.0 |              4 
 master  | 3 days   | █▉                  |            14.3 |             21 
 master  | 7 days   | ██▍                 |            16.9 |             65 
 master  | 30 days  | ██▋                 |            17.9 |            195 
 [other] | 1 day    | ███████             |            40.0 |             10 
 [other] | 3 days   | ██████▎             |            36.4 |             77 
 [other] | 7 days   | ████▏               |            25.6 |            211 
 [other] | 30 days  | ████▊               |            29.0 |            785 
(8 rows)