* heimdall client: add new meter and timer metrics
* fix: error in handling valid and invalid request metric
* use ctx outside of request
* add separate metrics for each request
* fix: modify metric name
* fix: renmae metric name by removing hyphen
* use ctx value for request type
* fix linters
* fix panic on using string as key for ctx and on nil return
* refactor
* refactor
* rm comment
Co-authored-by: Evgeny Danienko <6655321@bk.ru>
