fix: update Discord invite link in community documentation

closes: #6188

Author: Soulter

docs/en/community.md

@@ -6,7 +6,7 @@ This documentation may not cover all features comprehensively. If you have any q
 
 ### Discord
 
-<https://discord.gg/PxgzhmxJ>
+<https://discord.gg/hAVk6tgV36>
 
 ### GitHub
 

docs/zh/community.md

@@ -21,7 +21,7 @@
 
 ### Discord
 
-https://discord.gg/PxgzhmxJ
+https://discord.gg/hAVk6tgV36
 
 ### Astrbook