Add GenAI semconv attributes to native OTel spans #2704

Job	Run time
checks / pre-commit	36s
checks / test (3.11, locked, ubuntu-latest)	52s
checks / readme-snippets	11s
checks / test (3.10, lowest-direct, windows-latest)	1m 19s
checks / test (3.10, lowest-direct, ubuntu-latest)	1m 2s
checks / test (3.12, locked, windows-latest)	1m 26s
checks / test (3.11, lowest-direct, windows-latest)	1m 42s
checks / test (3.13, locked, windows-latest)	1m 17s
checks / test (3.12, lowest-direct, ubuntu-latest)	57s
checks / test (3.14, locked, windows-latest)	2m 12s
checks / test (3.11, lowest-direct, ubuntu-latest)	46s
checks / test (3.14, locked, ubuntu-latest)	1m 58s
checks / test (3.13, locked, ubuntu-latest)	52s
checks / test (3.13, lowest-direct, ubuntu-latest)	58s
checks / test (3.14, lowest-direct, windows-latest)	1m 46s
checks / test (3.14, lowest-direct, ubuntu-latest)	55s
checks / test (3.11, locked, windows-latest)	1m 33s
checks / test (3.12, lowest-direct, windows-latest)	1m 39s
checks / test (3.12, locked, ubuntu-latest)	57s
checks / test (3.13, lowest-direct, windows-latest)	1m 44s
checks / test (3.10, locked, windows-latest)	1m 32s
checks / test (3.10, locked, ubuntu-latest)	54s
all-green	5s
	27m 13s

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