Prepare patch release for opentelemetry-instrumentation-google-genai v0.7b1 (#4598)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>

Author: otelbot[bot]

instrumentation-genai/opentelemetry-instrumentation-google-genai/src/opentelemetry/instrumentation/google_genai/version.py

@@ -17,4 +17,4 @@
 #   This version should stay below "1.0" until the fundamentals
 #   in "TODOS.md" have been addressed. Please revisit the TODOs
 #   listed there before bumping to a stable version.
-__version__ = "0.7b0"
+__version__ = "0.7b1"