chore(deps): update to latest version of opentelemetry

[flavio]

Update to latest version of the opentelemetry crate.

This is going to fix https://github.com/kubewarden/policy-server/pull/465 and https://github.com/kubewarden/policy-server/pull/439

[flavio]

Moving to blocked. I looked into the upgrade and I discovered the current main branch of opentelemetry has already a different API.

I propose to look back into this issue as soon as the next version of the opentelemetry crates are released.

Apparently there's already an issue open about tagging a new releases that includes these changes

[fabriziosestito]

• [x] update the controller dependency: See https://github.com/kubewarden/kubewarden-controller/pull/458
• [x] update the documentation (opentelemetry guide) with the latest chart versions