chore: bump google-genai SDK requirement to >= 2.0.0, < 3.0.0

PiperOrigin-RevId: 914346388

Author: vertex-sdk-bot

setup.py

@@ -173,6 +173,7 @@
     "typing_extensions",
     "google-cloud-iam",
     "aiohttp",  # for ADK users to use aiohttp rather than httpx client
+    "google-genai >= 2.0.0, < 3.0.0",
 ]
 
 evaluation_extra_require = [
@@ -196,6 +197,7 @@
     "langchain-google-genai >= 4.0.0, < 5.0.0",
     "langgraph >= 1.0.0, < 2.0.0",
     "openinference-instrumentation-langchain >= 0.1.19, < 0.2",
+    "google-genai < 2.0.0",
 ]
 
 langchain_testing_extra_require = list(
@@ -326,7 +328,8 @@
         "google-cloud-storage >= 3.10.0, < 4.0.0; python_version>='3.13'",
         "google-cloud-bigquery >= 1.15.0, < 4.0.0, !=3.20.0",
         "google-cloud-resource-manager >= 1.3.3, < 3.0.0",
-        "google-genai >= 1.75.0, < 2.0.0",
+        "google-genai >= 1.37.0, <3.0.0; python_version<'3.10'",
+        "google-genai >= 1.66.0, <3.0.0; python_version>='3.10'",
     )
     + genai_requires,
     extras_require={