perf(string): replace format by f-string in ddtrace/_trace

[dubloom]

This PR is a follow up to #14867.

It appears that f string are significantly more performant than using .format(). Therefore every format call is replaced by an f-string

[github-actions]

CODEOWNERS have been resolved as:

ddtrace/_trace/_span_link.py                                            @DataDog/apm-sdk-capabilities-python
ddtrace/_trace/context.py                                               @DataDog/apm-sdk-capabilities-python
ddtrace/_trace/sampler.py                                               @DataDog/apm-sdk-capabilities-python
ddtrace/_trace/span.py                                                  @DataDog/apm-sdk-capabilities-python
ddtrace/_trace/trace_handlers.py                                        @DataDog/apm-sdk-capabilities-python @DataDog/apm-core-python @DataDog/apm-idm-python

[github-actions]

Bootstrap import analysis

Comparison of import times between this PR and base.

Summary

The average import time from this PR is: 240 ± 3 ms.

The average import time from base is: 242 ± 2 ms.

The import time difference between this PR and base is: -1.3 ± 0.1 ms.

Import time breakdown

The following import paths have shrunk:

ddtrace.auto 1.946 ms (0.81%)

ddtrace.bootstrap.sitecustomize 1.273 ms (0.53%)

ddtrace.bootstrap.preload 1.273 ms (0.53%)

ddtrace.internal.remoteconfig.client 0.635 ms (0.26%)

ddtrace 0.673 ms (0.28%)

ddtrace.internal._unpatched 0.027 ms (0.01%)

json 0.027 ms (0.01%)

json.decoder 0.027 ms (0.01%)

re 0.027 ms (0.01%)

enum 0.027 ms (0.01%)

types 0.027 ms (0.01%)

[brettlangdon]

lgtm