Update Node version in release workflow (#633)

## Summary

This PR updates the minimum Node version to 22 and is a follow-up from
#631. The dependencies that
we use to publish the build artifacts bumped the minimum version of Node
to 20. I've bumped it to 22 as that's the minimum active LTS version
right now.

Along with the node version bump, this PR also updates the said
dependencies (`ovsx` and `vsce`) to the latest version which requires a
minimum node version of 20.

## Test Plan

When I perform the next release :)

.github/workflows/release.yaml

@@ -133,9 +133,9 @@ jobs:
 
       # Install Node.
       - name: Install Node.js
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 22
 
       # Install Node dependencies.
       - run: npm ci
@@ -172,9 +172,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install Nodejs
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 22
 
       - name: Checkout repository
         uses: actions/checkout@v3
@@ -237,9 +237,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install Nodejs
-        uses: actions/setup-node@v3
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 22
 
       - name: Checkout repository
         uses: actions/checkout@v3