Add basic OpenTelemetry tracing for client and server requests #1731

Job	Run time
checks / pre-commit	32s
checks / readme-snippets	10s
checks / test (3.13, lowest-direct, ubuntu-latest)	58s
checks / test (3.11, locked, ubuntu-latest)	47s
checks / test (3.13, locked, windows-latest)	2m 18s
checks / test (3.10, locked, windows-latest)	2m 20s
checks / test (3.14, locked, windows-latest)	2m 59s
checks / test (3.11, locked, windows-latest)	2m 8s
checks / test (3.12, lowest-direct, windows-latest)	3m 58s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.10, lowest-direct, windows-latest)	2m 51s
checks / test (3.13, locked, ubuntu-latest)	48s
checks / test (3.12, lowest-direct, ubuntu-latest)	57s
checks / test (3.14, locked, ubuntu-latest)	2m 13s
checks / test (3.10, locked, ubuntu-latest)	49s
checks / test (3.14, lowest-direct, windows-latest)	2m 17s
checks / test (3.11, lowest-direct, windows-latest)	3m 0s
checks / test (3.10, lowest-direct, ubuntu-latest)	52s
checks / test (3.13, lowest-direct, windows-latest)	2m 17s
checks / test (3.12, locked, ubuntu-latest)	56s
checks / test (3.12, locked, windows-latest)	3m 14s
checks / test (3.11, lowest-direct, ubuntu-latest)	52s
all-green	5s
	38m 35s

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