Rely on a specific DiscordKit commit before release

Allows this particular release tag to be built in the future, which might not be possible when relying on the main branch which might have breaking changes.

Author: cryptoAlgorithm

Swiftcord.xcodeproj/project.pbxproj

@@ -962,8 +962,8 @@
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/SwiftcordApp/DiscordKit";
 			requirement = {
-				branch = main;
-				kind = branch;
+				kind = revision;
+				revision = 9a27e869196df8926e1d47af6c73e3135debf51f;
 			};
 		};
 		DA97BA8E2849F9C500059FD7 /* XCRemoteSwiftPackageReference "appcenter-sdk-apple" */ = {