* add otel push exporter

* rename examples to make it more understanding

* add must use notice as well functions to customize timeout and period

* fail compile if no runtime is enabled

* update changelog

* add feature flag documentation

* add documentation

Since this isn't ever used, this doesn't really affect anything, but
just for clarity, fix the typo of 'prometheus' in the full-api example.

Signed-off-by: Paul R. Tagliamonte <[email protected]>

* Update to syn v2

* Update autometrics/tests/init_to_zero_test.rs

Co-authored-by: Mari <[email protected]>

* Restore old error message

* Add `syn` v2 update to changelog

---------

Co-authored-by: Mari <[email protected]>

* add better error message when using `async-trait`

* change output file

* move #121 compile tests into trybuild harness

* update changelog for #149

* add pr template

Simplify CHANGELOG.md by removing headers

…#151)

* add missing feature flag to opentelemetry_otlp for otel-http-push-exporter

* update changelog and rustfmt

* pr review

* add repo url and provider

* update changelog

* coulda lso add the pr number ngl

* fix wrong cardinality

* unintended change my bad

#154)

* add `autometrics.version` to `build_info`

* update changelog

* use dot notation

* use a const to prevent repetition

…untime (#156)

* allow setting repo url and provider at runtime

* update changelog

…160)

* otel update

* update actions too

* update trybuild error

* update actions

* exemplars as well

* update otel exporter

* update changelog

* update prometheus-client to 0.22 (#160)

* upgrade prometheus-client

* update changelog

* add notice in changelog

* fix typo

* add full support for async-trait

* move async trait support from compile fail to pass

* update changelog

* update changelog again

…re-exported from another crate (#164)

* fix detection of `#[async_trait]` attribute

* use regex instead

* remember which async-trait to readd

* update changelog

* change comment to be used in `.expect`

Co-authored-by: Gerry Agbobada <[email protected]>

---------

Co-authored-by: Gerry Agbobada <[email protected]>