fix(env): increase default rate limit burst value

This change increases the default Gateway's capacity to handle sudden
spikes in traffic. By allowing a burst size of 100, the system can
accommodate more incoming requests within the rate interval without
immediately rejecting excess traffic.

Author: henrybarreto

.env

@@ -162,7 +162,7 @@ SHELLHUB_API_RATE_LIMIT_ZONE_SIZE=10m
 
 # Defines the maximum burst size for incoming requests to the ShellHub API.
 # VALUES: A positive integer
-SHELLHUB_API_BURST_SIZE=1
+SHELLHUB_API_BURST_SIZE=100
 
 # Defines the delay strategy for handling bursts of incoming requests.
 # VALUES: nodelay, or the number of requests to delay.