fix(deno): Fix Deno E2E test playwright version conflict

Revert `nodeModulesDir: "auto"` and add `@opentelemetry/api` to
package.json instead. This lets pnpm install OTel into node_modules
so Deno resolves it in manual mode without creating a `.deno/` dir
that duplicates playwright.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sergical

dev-packages/e2e-tests/test-applications/deno/deno.json

@@ -1,5 +1,4 @@
 {
-  "nodeModulesDir": "auto",
   "imports": {
     "@sentry/deno": "../../../../packages/deno/build/esm/index.js",
     "@sentry/core": "../../../../packages/core/build/esm/index.js",

dev-packages/e2e-tests/test-applications/deno/package.json

@@ -10,7 +10,8 @@
     "test:assert": "pnpm test"
   },
   "dependencies": {
-    "@sentry/deno": "latest || *"
+    "@sentry/deno": "latest || *",
+    "@opentelemetry/api": "^1.9.0"
   },
   "devDependencies": {
     "@playwright/test": "~1.56.0",