Prevents unhandledrejection error when checking for latest Astro version (#11013)

* fix: prevent error appear when check latest version fail(#11012)

* Resolve review problem

Author: QingXia-Ela

.changeset/warm-schools-applaud.md

@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Prevents unhandledrejection error when checking for latest Astro version 

packages/astro/src/core/dev/dev.ts

@@ -73,7 +73,7 @@ export default async function dev(inlineConfig: AstroInlineConfig): Promise<DevS
 						);
 					}
 				}
-			});
+			}).catch(() => { });
 		} catch (e) {
 			// Just ignore the error, we don't want to block the dev server from starting and this is just a nice-to-have feature
 		}