Update bun.lockb, Dockerfile, and package.json for bun version upgrade and installation changes

bun/Dockerfile

@@ -4,7 +4,7 @@ RUN apk add --no-cache git
 
 COPY package.json bun.lockb ./
 # Make sure these files are present before installing
-RUN bun install 
+RUN bun install --frozen-lockfile
 
 # Now copy the rest of your source code
 COPY . .

bun/package.json

@@ -13,6 +13,6 @@
     "typescript": "^5.3.3"
   },
   "dependencies": {
-    "bun": "^1.1.21"
+    "bun": "^1.1.45"
   }
 }