fix(release): skip node-gyp-build in smoke test to use platform binaries

The pre-publish smoke test was failing because node-gyp-build ran during
npm install before the platform package was installed, triggering a source
build that failed without FFmpeg.

Changes:
- Add --ignore-scripts to smoke test npm install in release.yml
- Update optionalDependencies versions to match main package (0.1.1-alpha.5)

The platform package is installed separately from CI artifacts, and the
verification step confirms the native binding loads correctly.

Author: pproenca

.github/workflows/release.yml

@@ -147,7 +147,8 @@ jobs:
           npm init -y
 
           # Install from the local tarball (simulating what npm publish would produce)
-          npm install "../${{ env.PACKED_TGZ }}"
+          # Use --ignore-scripts to skip node-gyp-build (platform package provides binary)
+          npm install --ignore-scripts "../${{ env.PACKED_TGZ }}"
 
           # Also install the platform package from extracted artifact
           npm install "../packages/@pproenca/node-webcodecs-${{ matrix.platform }}"

package.json

@@ -66,9 +66,9 @@
     "directory": "test/types"
   },
   "optionalDependencies": {
-    "@pproenca/node-webcodecs-darwin-arm64": "0.1.1-alpha.4",
-    "@pproenca/node-webcodecs-darwin-x64": "0.1.1-alpha.4",
-    "@pproenca/node-webcodecs-linux-x64": "0.1.1-alpha.4"
+    "@pproenca/node-webcodecs-darwin-arm64": "0.1.1-alpha.5",
+    "@pproenca/node-webcodecs-darwin-x64": "0.1.1-alpha.5",
+    "@pproenca/node-webcodecs-linux-x64": "0.1.1-alpha.5"
   },
   "dependencies": {
     "node-gyp-build": "^4.8.0"