Refactor and low level rules

[feliam]

• Added prometheus rules linter (pint) to the CI
• Removed redundant "NamadaBlockProcessingSlow" rule
• Added low level alert rule to allow the monitor to generate alerts directly
• Fix rule NamadaAbnormalUnbonding filtering by chain id
• Added chain id to all summary/descriptions
• Checksums are retrieved only on epoch changes

[github-actions]

This pull request was validated by pint.

❗ Problems found.

Severity	Number of problems
Warning	2

Stats

Stat	Value
Version	0.71.8
Number of rules parsed	17
Number of rules checked	17
Number of problems found	2
Number of offline checks	113
Number of online checks	0
Checks duration	4ms

Problems

Warning: dead code in query (promql/impossible)
  ---> composer/provisioning/prometheus/namada-alerts.yml:56 -> `NamadaTransactionBatchSpike`
56 |       rate(namada_transaction_batch_size_count{ chain_id="$$CHAIN_ID$$" }[10m]) > (2 * quantile(0.50, rate(namada_transaction_batch_size_count{ chain_id="$$CHAIN_ID$$" }[7d])))
                                                                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The right hand side will never be matched because it doesn't have the `chain_id` label while the left hand side will. Query is using aggregation that removes all labels.

Warning: dead code in query (promql/impossible)
  ---> composer/provisioning/prometheus/namada-alerts.yml:78-80 -> `AbnormalInnerTransactionFailureRate`
78 |       (rate(namada_transaction_kind{chain_id="$$CHAIN_ID$$", failed="true"}[10m]) / rate(namada_transaction_kind{chain_id="$$CHAIN_ID$$"}[10m]))
79 |       >
80 |       (2 * quantile(0.50, rate(namada_transaction_kind{chain_id="$$CHAIN_ID$$", failed="true"}[7d:]) / rate(namada_transaction_kind{chain_id="$$CHAIN_ID$$"}[7d:])))
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The right hand side will never be matched because it doesn't have the `chain_id` label while the left hand side will. Query is using aggregation that removes all labels.