opentelemetry-instrumentation-vertexai: ignore deprecation warnings (open-telemetry#3721)

Ignore deprecations warnings for GenAiSystemValues since the replacement
GenAiProviderNameValues is not available in any release yet.

Author: xrmx

instrumentation-genai/opentelemetry-instrumentation-vertexai/src/opentelemetry/instrumentation/vertexai/events.py

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# type: ignore[reportUnknownDeprecated]
+
 """
 Factories for event types described in
 https://github.com/open-telemetry/semantic-conventions/blob/main/docs/gen-ai/gen-ai-events.md#system-event.

instrumentation-genai/opentelemetry-instrumentation-vertexai/src/opentelemetry/instrumentation/vertexai/utils.py

@@ -12,6 +12,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+# type: ignore[reportUnknownDeprecated]
+
 from __future__ import annotations
 
 import re