Prepare changelog for 0.114.0 release

[dmitryax]

No description provided.

[atoulme]

I believe this item from core release was requested:

scraperhelper: If the scraper shuts down, do not scrape first. (https://github.com/open-telemetry/opentelemetry-collector/pull/11632)
When the scraper is shutting down, it currently will scrape at least once.
With this change, upon receiving a shutdown order, the receiver's scraperhelper will exit immediately.

[dmitryax]

Thanks for catching it. I missed the bug fixes from core