…ork request processing

Basically, `akka-http` instrumenter has the responsibility to
instrument the `http_server_duration`, but the current implementation
has not marked the `http_route` attribute.
ref: https://github.com/open-telemetry/opentelemetry-java-instrumentation/blob/8e8161cb2e5b27d78b8afb7872df17cfa25a2f74/instrumentation/akka/akka-http-10.0/javaagent/src/main/java/io/opentelemetry/javaagent/instrumentation/akkahttp/server/AkkaHttpServerAttributesGetter.java#L59

Actually, it's hard to record that attribute by only the akka-http layer
because that library's request object doesn't hold the route
information, e.g. placeholder.

So this patch delegates that job to the `play` instrumenter and when
that has been able to get the route info, the instrumenter puts
`http_route` attribute onto `http_server_duration`.

For example, when the routes configuration of the Play is like the
following:

```
GET  /foo/:bar  controllers.HomeController.doSomething(bar: String)
```

and when it tries to access that API, then OTEL instruments like so:

```prometheus
http_server_duration_count{otel_scope_name="io.opentelemetry.akka-http-10.0",otel_scope_version="1.23.0-alpha-SNAPSHOT",http_flavor="1.1",http_method="GET",http_route="/foo/$bar<[^/]+>",http_scheme="http",http_status_code="200",net_host_name="localhost",net_host_port="9000"} 1.0 1676078079798
http_server_duration_sum{otel_scope_name="io.opentelemetry.akka-http-10.0",otel_scope_version="1.23.0-alpha-SNAPSHOT",http_flavor="1.1",http_method="GET",http_route="/foo/$bar<[^/]+>",http_scheme="http",http_status_code="200",net_host_name="localhost",net_host_port="9000"} 12183.558843 1676078079798
http_server_duration_bucket{otel_scope_name="io.opentelemetry.akka-http-10.0",otel_scope_version="1.23.0-alpha-SNAPSHOT",http_flavor="1.1",http_method="GET",http_route="/foo/$bar<[^/]+>",http_scheme="http",http_status_code="200",net_host_name="localhost",net_host_port="9000",le="0.0"} 0.0 1676078079798
...
http_server_duration_bucket{otel_scope_name="io.opentelemetry.akka-http-10.0",otel_scope_version="1.23.0-alpha-SNAPSHOT",http_flavor="1.1",http_method="GET",http_route="/foo/$bar<[^/]+>",http_scheme="http",http_status_code="200",net_host_name="localhost",net_host_port="9000",le="+Inf"} 1.0 1676078079798
```

Rel: open-telemetry#1415

Signed-off-by: moznion <[email protected]>

…bute

Signed-off-by: moznion <[email protected]>

…in a server span with Play framework

Signed-off-by: moznion <[email protected]>

Signed-off-by: moznion <[email protected]>

rel:

- open-telemetry#7801 (comment)
- open-telemetry#7801 (comment)

Signed-off-by: moznion <[email protected]>

ref: https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/7801/files#r1104257504

Signed-off-by: moznion <[email protected]>

rel: open-telemetry#7801 (comment)

Signed-off-by: moznion <[email protected]>

Signed-off-by: moznion <[email protected]>