rtgstat 0.3.6

Replaced R 4.1.0 function shorthand syntax \(x) with classic function(x) in tg_api_usage() to maintain compatibility with R versions < 4.1.0 without adding a hard Depends: R (>= 4.1.0) requirement. This fixes the CRAN NOTE during the 0.3.5 submission.

rtgstat 0.3.5

Changed Language: ru to Language: en-US in DESCRIPTION to fix Nu HTML checker warnings reported by CRAN (the documentation is written in English).
Added comprehensive unit testing using httptest2 to mock API responses and preserve rate limits.
Fixed an issue with httr2::req_retry() compatibility in recent httr2 versions (parameter after now expects a function).
Updated dplyr syntax in tg_api_usage() to comply with recent dplyr changes (replaced across(...) external vector warnings and deprecated ... argument).

It fixed error:

Error in `req_retry()`:
! `max_tries` must be a whole number larger than or equal to 2 or `NULL`, not the number 1.

Update error handing policy in tg_make_request(), now using req_error() for response error handing.
The description lists the minimum required versions of most imported packages.

Fix tg_get_token(), previously the function only looked for the token in the options, ignoring the environment variable issue#1

tg_channel_avg_posts_reach() - Getting the average coverage of channel publications over time.
tg_channel_err() - Obtaining an ERR indicator for a channel in dynamics.
tg_set_check_api_quote() - Enable and disable API limit rate alerts.

rtgstat added to TGStat API documentation.
The mechanism for retrying a request in case of an error has been rewritten to the standard means httr2, using req_retry().
Add user agent to request in tg_make_request() by req_user_agent().
Now API endpoint add to URL by req_url_path_append() inside tg_make_request().
Disabled checking the api quota usage in the tg_categories(), tg_countries(), tg_languages().
retry removed from rtgstat dependencies.