chore: move to patches (#4997)

* Move integration types into code-server

This will be easier to maintain than to have it as a patch.

* Disable connection token

Using a flag means we will not need to patch it out.  I think this is
new from 1.64?

* Add product.json to build process

This way we do not have to patch it.

* Ship with remote agent package.json

Instead of the root one.  This contains fewer dependencies.

* Let Code handle errors

This way we will not have to patch Code to make this work and I think it
makes sense to let Code handle the request.

If we do want to handle errors we can do it cleanly by patching their
error handler to throw instead.

* Move manifest override into code-server

This way we will not have to patch it.

* Move to patches

- Switch submodule to track upstream
- Add quilt to the process
- Add patches

The node-* ignore was ignoring one of the diffs so I removed it.  This
was added when we were curling Node as node-v{version}-darwin-x64 for
the macOS build but this no longer happens (we use the Node action to
install a specific version now so we just use the system-wide Node).

* Use pre-packaged Code

.github/workflows/ci.yaml

@@ -110,6 +110,12 @@ jobs:
           fetch-depth: 0
           submodules: true
 
+      - name: Install quilt
+        run: sudo apt update && sudo apt install quilt
+
+      - name: Patch Code
+        run: quilt push -a
+
       - name: Install Node.js v14
         uses: actions/setup-node@v3
         with:
@@ -132,25 +138,22 @@ jobs:
         run: yarn build
 
       # Get Code's git hash.  When this changes it means the content is
-      # different and we need to rebuild.  Use VSCODE_CACHE_VERSION to force a
-      # rebuild.
+      # different and we need to rebuild.
       - name: Get latest lib/vscode rev
         id: vscode-rev
         run: echo "::set-output name=rev::$(git rev-parse HEAD:./lib/vscode)"
 
-      - name: Fetch Code build from cache
-        id: cache-vscode-2
+        # We need to rebuild when we have a new version of Code or when any of
+        # the patches changed.  Use VSCODE_CACHE_VERSION to force a rebuild.
+      - name: Fetch prebuilt Code package from cache
+        id: cache-vscode
         uses: actions/cache@v3
         with:
-          path: |
-            lib/vscode/.build
-            lib/vscode/out-build
-            lib/vscode/out-vscode-reh-web
-            lib/vscode/out-vscode-reh-web-min
-          key: vscode-reh-build-${{ secrets.VSCODE_CACHE_VERSION }}-${{ steps.vscode-rev.outputs.rev }}
+          path: lib/vscode-reh-web-*
+          key: vscode-reh-package-${{ secrets.VSCODE_CACHE_VERSION }}-${{ steps.vscode-rev.outputs.rev }}-${{ hashFiles('patches/*.diff') }}
 
       - name: Build vscode
-        if: steps.cache-vscode-2.outputs.cache-hit != 'true'
+        if: steps.cache-vscode.outputs.cache-hit != 'true'
         run: yarn build:vscode
 
       # Our code imports code from VS Code's `out` directory meaning VS Code