docs: Adds 0.3 versioning docs (#6793)

Author: jacoblee93

deno.json

@@ -1,20 +1,20 @@
 {
   "imports": {
-    "langchain/": "npm:/langchain/",
+    "langchain/": "npm:/langchain@0.3.2/",
+    "@langchain/anthropic": "npm:@langchain/anthropic@0.3.0",
+    "@langchain/cloudflare": "npm:@langchain/cloudflare@0.1.0",
+    "@langchain/community/": "npm:/@langchain/community@0.3.0/",
+    "@langchain/openai": "npm:@langchain/openai@0.3.0",
+    "@langchain/cohere": "npm:@langchain/cohere@0.3.0",
+    "@langchain/textsplitters": "npm:@langchain/textsplitters@0.1.0",
+    "@langchain/google-vertexai-web": "npm:@langchain/google-vertexai-web@0.1.0",
+    "@langchain/mistralai": "npm:@langchain/mistralai@0.1.0",
+    "@langchain/core/": "npm:/@langchain/core@0.3.1/",
+    "@langchain/pinecone": "npm:@langchain/pinecone@0.1.0",
+    "@langchain/google-common": "npm:@langchain/google-common@0.1.0",
+    "@langchain/langgraph": "npm:/@langchain/langgraph@0.2.3",
+    "@langchain/langgraph/": "npm:/@langchain/langgraph@0.2.3/",
     "@faker-js/faker": "npm:@faker-js/faker",
-    "@langchain/anthropic": "npm:@langchain/anthropic",
-    "@langchain/cloudflare": "npm:@langchain/cloudflare",
-    "@langchain/community/": "npm:/@langchain/community@0.2.2/",
-    "@langchain/openai": "npm:@langchain/openai",
-    "@langchain/cohere": "npm:@langchain/cohere",
-    "@langchain/textsplitters": "npm:@langchain/textsplitters",
-    "@langchain/google-vertexai-web": "npm:@langchain/google-vertexai-web",
-    "@langchain/mistralai": "npm:@langchain/mistralai",
-    "@langchain/core/": "npm:/@langchain/core@0.2.16/",
-    "@langchain/pinecone": "npm:@langchain/pinecone",
-    "@langchain/google-common": "npm:@langchain/google-common",
-    "@langchain/langgraph": "npm:/@langchain/langgraph@0.0.21",
-    "@langchain/langgraph/": "npm:/@langchain/langgraph@0.0.21/",
     "@microsoft/fetch-event-source": "npm:@microsoft/fetch-event-source",
     "@pinecone-database/pinecone": "npm:@pinecone-database/pinecone",
     "cheerio": "npm:cheerio",