Update projects/otel-blueprints.md

Co-authored-by: Daniel Gomez Blanco <dgomezblanco@newrelic.com>

Author: maryliag

projects/otel-blueprints.md

@@ -153,7 +153,7 @@ Reiley Yang (@reyang)
 TBD
 
 #### GC Liaison
-TBD
+Marylia Gutierrez (@maryliag)
 
 ## Expected Timeline