chore(tempo): use single quotes for OTLP endpoint values in YAML

Author: kapitulin24

infra/observability/tempo/tempo-config.yaml

@@ -8,9 +8,9 @@ distributor:
     otlp:
       protocols:
         grpc:
-          endpoint: "0.0.0.0:${TEMPO_OTLP_GRPC_PORT:-4317}"
+          endpoint: '0.0.0.0:${TEMPO_OTLP_GRPC_PORT:-4317}'
         http:
-          endpoint: "0.0.0.0:${TEMPO_OTLP_HTTP_PORT:-4318}"
+          endpoint: '0.0.0.0:${TEMPO_OTLP_HTTP_PORT:-4318}'
 
 storage:
   trace: