This patch adds support for Opentelemetry. If
OTEL_EXPORTER_OTLP_ENDPOINT env variable is defined, it will send traces
there. Otherwise there is no change.
The whole compose is wrapped in a single span. Nested under that are
spans for operations that involve a remote server.
* Talking to CTS
* Sending API requests to Koji
* Any git repo clone
Signed-off-by: Lubomír Sedlář <lsedlar@redhat.com>
