Update opentelemetry-exporter-otlp requirement from ~> 0.26.3 to ~> 0.27.0 in /ruby/src/layer in the opentelemetry-deps-ruby group across 1 directory

Update opentelemetry-exporter-otlp requirement from ~> 0.26.3 to ~> 0.27.0 in /ruby/src/layer in the opentelemetry-deps-ruby group across 1 directory #936