elastic-opentelemetry-instrumentation-openai: relax api requirements

Relax requirements so that the upcoming 1.29.0 will be fine too. Keep
the comment signaling that you want at least 1.28.2.

Author: xrmx

instrumentation/elastic-opentelemetry-instrumentation-openai/pyproject.toml

@@ -25,8 +25,8 @@ classifiers = [
     "Programming Language :: Python :: 3.12",
 ]
 dependencies = [
-    # 1.28.2 is required for Events API/SDK
-    "opentelemetry-api ~= 1.28.2",
+    # 1.28.2 is required for *robust* Events API/SDK
+    "opentelemetry-api ~= 1.28",
     "opentelemetry-instrumentation ~= 0.49b2",
     "opentelemetry-semantic-conventions ~= 0.49b2",
     "wrapt >= 1.0.0, < 2.0.0",