deps: Bump OpenTelemetry 1.16.0 (#6062)

Fixes #6003

* test/e2e: fix distributed tracing tests
   Fixes provided by @zregvart, thank you!
* build: give up golang 1.18, it blocks OTel 1.16.0

Signed-off-by: Greg Haskins <greg@manetu.com>
Signed-off-by: Stephan Renatus <stephan@styra.com>
Co-authored-by: Greg Haskins <greg@manetu.com>
Co-authored-by: Zoran Regvart <zoran@regvart.com>