Ignore .idea/* files in the analysis bot. (#61215)

dev/bots/analyze.dart

diff --git a/dev/bots/analyze.dart b/dev/bots/analyze.dart
index d4c788b..35bac6d 100644
--- a/dev/bots/analyze.dart
+++ b/dev/bots/analyze.dart
@@ -1155,6 +1155,8 @@
         continue;
       if (path.basename(entity.path) == '.dart_tool')
         continue;
+      if (path.basename(entity.path) == '.idea')
+        continue;
       if (path.basename(entity.path) == 'build')
         continue;
       pending.addAll(entity.listSync());