fix: spans not taking the parentId of their parent

All spans were being assigned a parentId of the root span instead of
their immediate parent.

Each new span is now created outside of the context execution which
ensures that all child spans will be correctly scoped to it.

Feature/app name

chore: version upgrade

Move all @nestjs packages to peerDependencies

Hotfix observer decorators

Hotfix/dependency upgrade

hotfix for guard injector scope

upgrade opentelemetry versions

hello world v2

Update README.md

I was reading the readme in order to test the module so I saw some typo and concept mistakes. I fix them :)

log -> warn