feat: add close-caption, transcript, flag, and flag-slash (#10039)

**Related Issue:** #

## Summary
**added**

close-caption-16
close-caption-24
close-caption-32

close-caption-f-16
close-caption-f-24
close-caption-f-32

transcript-16
transcript-24
transcript-32

transcript-f-16
transcript-f-24
transcript-f-32

flag-16
flag-24
flag-32

flag-f-16
flag-f-24
flag-f-31

flag-slash-16
flag-slash-24
flag-slash-32




![image](https://github.com/user-attachments/assets/7ca94557-ac12-4a95-92e2-8666e08d2f10)


![image](https://github.com/user-attachments/assets/2ae0bbc2-64b5-4d26-a5da-b969cb8393da)


![image](https://github.com/user-attachments/assets/d5edff14-83cd-4594-a043-83bc7b9e5118)

---------

Co-authored-by: Ben Elan <no-reply@benelan.dev>

packages/calcite-ui-icons/docs/keywords.json

@@ -8860,5 +8860,25 @@
     ],
     "category": "Symbols",
     "release": "3.29.0"
+  },
+  "flag-slash": {
+    "alias": ["3.29.1", "objects", "flag", "cancel", "stop", "slash", "signal", "remove", "important", "alert"],
+    "category": "Objects",
+    "release": "3.29.1"
+  },
+  "flag": {
+    "alias": ["3.29.1", "objects", "signal", "flag", "sign", "important", "warning", "alert", "caution"],
+    "category": "Objects",
+    "release": "3.29.1"
+  },
+  "closed-caption": {
+    "alias": ["3.29.1", "media", "media", "audio", "video", "display", "text", "information"],
+    "category": "Media",
+    "release": "3.29.1"
+  },
+  "transcript": {
+    "alias": ["3.29.1", "media", "captions", "text", "video", "display", "speech"],
+    "category": "Media",
+    "release": "3.29.1"
   }
 }