cloudflare/pint v0.67.0 on GitHub

Added --checkstyle flag to pint lint & pint ci for writing XML report file
in checkstyle format - #1129.
Added --json flag to both pint lint and pint ci commands, this enables writing a JSON file
with the report of all problems #606.
promql/fragile will now warn when alerting rules are using
one of the aggregation operation that can return different series on every evaluation,
which can cause alert floppiness - #820.
promql/regexp check now supports extra configuration options
to disable reports on smelly selector - #1096.
Checks can be enabled or disabled specifically for some Prometheus rules via rule {} config blocks.
Adding enable or disable option with a list of checks names allows to selectively enable or disable
checks only for Prometheus rules that match given rule {} definition.
Enabling checks only for matching rules will only work if these checks are disabled globally via
check { disabled = [] } config block.
For example to disable promql/rate check for all rules except alerting rules in the rules/critical folder:
```
checks {
  // This will disable promql/rate by default.
  disabled = [ "promql/rate" ]
}
rule {
  match {
    path = "rules/critical/.*"
    kind = "alerting"
  }
  // This will enable promql/rate only for Prometheus rules matching all our match conditions above.
  enable = [ "promql/rate" ]
}
```

alerts/template check was refactored and will now produce more accurate results.
Messages produced by this check might include details of the PromQL query fragment causing the problem
if the query is complex enough.