feat: add OpenTelemetry tracing for client and server requests #595

Job	Run time
checks / readme-snippets	11s
checks / pre-commit	31s
checks / test (3.11, lowest-direct, windows-latest)	2m 50s
checks / test (3.10, locked, ubuntu-latest)	46s
checks / test (3.12, locked, windows-latest)	3m 21s
checks / test (3.13, locked, ubuntu-latest)	46s
checks / test (3.11, lowest-direct, ubuntu-latest)	44s
checks / test (3.11, locked, ubuntu-latest)	46s
checks / test (3.14, lowest-direct, windows-latest)	2m 26s
checks / test (3.13, lowest-direct, ubuntu-latest)	43s
checks / test (3.11, locked, windows-latest)	2m 52s
checks / test (3.12, locked, ubuntu-latest)	54s
checks / test (3.10, locked, windows-latest)	2m 21s
checks / test (3.10, lowest-direct, ubuntu-latest)	48s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 12s
checks / test (3.12, lowest-direct, windows-latest)	3m 36s
checks / test (3.13, lowest-direct, windows-latest)	2m 47s
checks / test (3.14, locked, windows-latest)	4m 8s
checks / test (3.13, locked, windows-latest)	2m 33s
checks / test (3.12, lowest-direct, ubuntu-latest)	48s
checks / test (3.10, lowest-direct, windows-latest)	2m 23s
checks / test (3.14, locked, ubuntu-latest)	2m 22s
all-green	4s
	39m 52s

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