Exclude test files from build artifacts (#6216)

* Exclude test files from build artifacts

- Update crdt tsconfig.dist.json to exclude test files from dist output
- Update desktop-electron tsconfig.dist.json to exclude test files from build output

This prevents test files from being compiled into dist directories and
ensures they won't be picked up by test runners in CI/CD.

* Add release notes for PR #6216

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

packages/crdt/tsconfig.dist.json

@@ -12,5 +12,5 @@
     "outDir": "dist"
   },
   "include": ["."],
-  "exclude": ["dist"]
+  "exclude": ["dist", "**/*.test.ts", "**/*.spec.ts"]
 }

packages/desktop-electron/tsconfig.dist.json

@@ -12,5 +12,11 @@
     "rootDir": ".."
   },
   "include": ["."],
-  "exclude": ["**/node_modules/*", "build/**/*", "e2e/**/*"]
+  "exclude": [
+    "**/node_modules/*",
+    "build/**/*",
+    "e2e/**/*",
+    "**/*.test.ts",
+    "**/*.spec.ts"
+  ]
 }

upcoming-release-notes/6216.md

@@ -0,0 +1,7 @@
+---
+category: Maintenance
+authors: [MatissJanis]
+---
+
+Exclude test files from build artifacts in TypeScript configuration for two packages.
+