Add basic OpenTelemetry tracing for client and server requests #1730

Job	Run time
checks / readme-snippets	13s
checks / pre-commit	31s
checks / test (3.10, lowest-direct, windows-latest)	2m 17s
checks / test (3.10, locked, windows-latest)	2m 7s
checks / test (3.12, lowest-direct, ubuntu-latest)	57s
checks / test (3.12, locked, windows-latest)	2m 56s
checks / test (3.10, locked, ubuntu-latest)	51s
checks / test (3.10, lowest-direct, ubuntu-latest)	49s
checks / test (3.11, lowest-direct, windows-latest)	2m 45s
checks / test (3.11, locked, windows-latest)	2m 17s
checks / test (3.11, lowest-direct, ubuntu-latest)	54s
checks / test (3.12, lowest-direct, windows-latest)	2m 56s
checks / test (3.12, locked, ubuntu-latest)	56s
checks / test (3.11, locked, ubuntu-latest)	54s
checks / test (3.13, locked, ubuntu-latest)	44s
checks / test (3.14, locked, windows-latest)	2m 54s
checks / test (3.13, locked, windows-latest)	2m 28s
checks / test (3.14, lowest-direct, windows-latest)	2m 6s
checks / test (3.14, lowest-direct, ubuntu-latest)	1m 14s
checks / test (3.13, lowest-direct, ubuntu-latest)	51s
checks / test (3.14, locked, ubuntu-latest)	2m 17s
checks / test (3.13, lowest-direct, windows-latest)	2m 45s
all-green	5s
	36m 47s

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