0.3.0

Features:

• added basic support of genini pro (#33)
• configure service name via env var (#39)
• support Imagen model (#37)
• supported 32k models (#29)
• supported Gemini Pro Vision (#34)

Fixes:

• added OTLP export (#38)
• propagating per request key (#40)
• reject empty prompt in Gemini Pro Vision (#43)

Other:

• chore: Setup excludes for OSS Review Toolkit (#30)
• chore: add e2e tests trigger (#23)
• chore: bump aiohttp from 3.8.6 to 3.9.0 (#26)