fix(env): increase default rate limit burst value

This change increases the API'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.

Sometimes, the UI can generate a high volume of requests within the rate
interval, which could lead to a 429 status code (Too Many Requests).
This adjustment helps prevent such errors and improves the overall user
experience.

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.