Add preinstall setup to build

Already had this in the release build step, not sure why it is not in
the main build step.  But we started getting errors building native
modules in ci, and this might be why.

Author: code-asher

.github/workflows/build.yaml

@@ -179,13 +179,13 @@ jobs:
           cache-dependency-path: |
             package-lock.json
             test/package-lock.json
-      - run: SKIP_SUBMODULE_DEPS=1 npm ci
-      - run: npm run build
+
       # Get Code's git hash.  When this changes it means the content is
       # different and we need to rebuild.
       - name: Get latest lib/vscode rev
         id: vscode-rev
         run: echo "rev=$(git rev-parse HEAD:./lib/vscode)" >> $GITHUB_OUTPUT
+
       # We need to rebuild when we have a new version of Code, when any of the
       # patches changed, or when the code-server version changes (since it gets
       # embedded into the code).  Use VSCODE_CACHE_VERSION to force a rebuild.
@@ -198,10 +198,20 @@ jobs:
       - name: Build vscode
         if: steps.cache-vscode.outputs.cache-hit != 'true'
         run: |
-          pushd lib/vscode
+          cd lib/vscode/build
           npm ci
-          popd
+          cd ..
+          source ./build/azure-pipelines/linux/setup-env.sh
+          # Run preinstall script before root dependencies are installed
+          # so that v8 headers are patched correctly for native modules.
+          node build/npm/preinstall.ts
+          cd ../..
           npm run build:vscode
+
+      # Build the code-server wrapper.
+      - run: SKIP_SUBMODULE_DEPS=1 npm ci
+      - run: npm run build
+
       # Push up an artifact containing the linux-x64 release.
       - run: KEEP_MODULES=1 npm run release
       - run: tar -czf package.tar.gz release