chore(review): SHA-pin publish-workflow actions + correct core npm metadata

These two review fixes were edited but accidentally left unstaged when f935a52 (docs removal) was committed, so they never landed. Committing them now:

- release.yml: pin changesets/action, actions/checkout, actions/setup-node to full commit SHAs (with version comments).
- packages/core/package.json: description now describes the gRPC/protobuf core; dropped the 'webdriverio' keyword.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: AakashHotchandani

.github/workflows/release.yml

@@ -32,12 +32,12 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
         with:
           fetch-depth: 0   # Changesets needs full history/tags
 
       - name: Setup Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version: 22            # resolves to >= 22.14 on the runner (OIDC floor)
           registry-url: 'https://registry.npmjs.org'
@@ -58,7 +58,7 @@ jobs:
         run: npm test
 
       - name: Create Release PR or publish to npm
-        uses: changesets/action@v1
+        uses: changesets/action@a45c4d594aa4e2c509dc14a9f2b3b67ba3780d0d # v1
         with:
           version: npm run version    # changeset version (opens the "Version Packages" PR)
           publish: npm run release     # changeset publish (honors publishConfig.tag per branch)

packages/core/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@browserstack/wdio-browserstack-service",
   "version": "2.0.2",
-  "description": "WebdriverIO service for better Browserstack integration",
+  "description": "gRPC/protobuf core for the BrowserStack WebdriverIO service",
   "author": "Browserstack",
   "homepage": "https://github.com/browserstack/wdio-browserstack-service",
   "type": "module",
@@ -28,8 +28,7 @@
   "keywords": [
     "browserstack",
     "proto",
-    "grpc",
-    "webdriverio"
+    "grpc"
   ],
   "bugs": {
     "url": "https://github.com/browserstack/wdio-browserstack-service/issues"