Add GenAI semconv attributes to native OTel spans #2648

Job	Run time
checks / readme-snippets	14s
checks / pre-commit	31s
checks / test (3.10, lowest-direct, ubuntu-latest)	50s
checks / test (3.11, lowest-direct, ubuntu-latest)	55s
checks / test (3.11, locked, windows-latest)	1m 30s
checks / test (3.10, locked, ubuntu-latest)	55s
checks / test (3.10, locked, windows-latest)	1m 41s
checks / test (3.10, lowest-direct, windows-latest)	1m 27s
checks / test (3.12, lowest-direct, windows-latest)	1m 32s
checks / test (3.12, lowest-direct, ubuntu-latest)	58s
checks / test (3.12, locked, windows-latest)	1m 21s
checks / test (3.11, locked, ubuntu-latest)	47s
checks / test (3.14, lowest-direct, ubuntu-latest)	46s
checks / test (3.13, lowest-direct, ubuntu-latest)	58s
checks / test (3.11, lowest-direct, windows-latest)	1m 35s
checks / test (3.12, locked, ubuntu-latest)	51s
checks / test (3.14, lowest-direct, windows-latest)	1m 21s
checks / test (3.14, locked, ubuntu-latest)	1m 58s
checks / test (3.13, locked, windows-latest)	1m 44s
checks / test (3.13, locked, ubuntu-latest)	49s
checks / test (3.14, locked, windows-latest)	2m 26s
checks / test (3.13, lowest-direct, windows-latest)	1m 20s
all-green	4s
	26m 33s

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