Make OpenTelemetry tracing the single default middleware #3087

Job	Run time
checks / pre-commit	43s
checks / docs	34s
checks / readme-snippets	16s
checks / test (3.14, locked, ubuntu-latest)	2m 11s
checks / test (3.13, lowest-direct, windows-latest)	1m 36s
checks / test (3.12, locked, windows-latest)	1m 40s
checks / test (3.11, locked, ubuntu-latest)	1m 6s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 5s
checks / test (3.12, lowest-direct, windows-latest)	1m 38s
checks / test (3.13, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.13, locked, ubuntu-latest)	1m 7s
checks / test (3.14, locked, windows-latest)	2m 27s
checks / test (3.12, locked, ubuntu-latest)	1m 21s
checks / test (3.14, lowest-direct, windows-latest)	1m 33s
checks / test (3.11, lowest-direct, ubuntu-latest)	1m 8s
checks / test (3.12, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.10, locked, windows-latest)	1m 39s
checks / test (3.13, locked, windows-latest)	1m 44s
checks / test (3.11, locked, windows-latest)	1m 45s
checks / test (3.10, lowest-direct, windows-latest)	1m 47s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 7s
checks / test (3.11, lowest-direct, windows-latest)	1m 44s
checks / test (3.10, locked, ubuntu-latest)	1m 15s
all-green	4s
	31m 50s

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