[VOL-5567] Upgrade protos and remove deprecated dependencies

Change-Id: I61605ee294a3c5abe65ecf94a0fe647c6e3b8479
Signed-off-by: bseeniva <balaji.seenivasan@radisys.com>
diff --git a/vendor/go.opentelemetry.io/otel/attribute/key.go b/vendor/go.opentelemetry.io/otel/attribute/key.go
index d9a22c6..80a9e56 100644
--- a/vendor/go.opentelemetry.io/otel/attribute/key.go
+++ b/vendor/go.opentelemetry.io/otel/attribute/key.go
@@ -117,7 +117,7 @@
 	}
 }
 
-// Defined returns true for non-empty keys.
+// Defined reports whether the key is not empty.
 func (k Key) Defined() bool {
 	return len(k) != 0
 }