Update Code to 1.75.0 (#6004)

* Update Code to 1.75.0

- getting-started.diff: The way to get an icon's class changed
- proxy-uri.diff: The product service is passed in so we can get the
  proxy URI from that now instead of passing it in separately.

* Remove workspace trust test

Something in how/when Code displays the trust dialog appears to have
changed, failing the test.  I am not sure it makes sense for us to be
testing upstream code anyway.

* Use regular Node for watch

Since we spawn the watch script with ts-node it was using ts-node for
the web server spawn as well.  With latest Code there are for some
reason type errors (it cannot find @types/node) but this is already
compiled code which already passed type checks; any type errors here are
useless.  To fix spawn with regular Node.

* Fix some workers not loading

patches/disable-builtin-ext-update.diff

@@ -7,7 +7,7 @@ Index: code-server/lib/vscode/src/vs/workbench/contrib/extensions/browser/extens
 ===================================================================
 --- code-server.orig/lib/vscode/src/vs/workbench/contrib/extensions/browser/extensionsWorkbenchService.ts
 +++ code-server/lib/vscode/src/vs/workbench/contrib/extensions/browser/extensionsWorkbenchService.ts
-@@ -237,6 +237,10 @@ export class Extension implements IExten
+@@ -243,6 +243,10 @@ export class Extension implements IExten
  			if (this.type === ExtensionType.System && this.productService.quality === 'stable') {
  				return false;
  			}