Exclude connector-sdk tests from the build typecheck

The docker build (fresh install, container @types resolution) fails on
http.test.ts's enhanced-Response mock (bytes/textStream) — tests are vitest
territory, never part of the dist build.

packages/connector-sdk/tsconfig.json

@@ -4,5 +4,10 @@
     "outDir": "dist",
     "rootDir": "src"
   },
-  "include": ["src"]
+  "include": [
+    "src"
+  ],
+  "exclude": [
+    "src/**/*.test.ts"
+  ]
 }