Update to VS Code 1.48.0

partial cherry-pick from `qc-development` branch

Author: shati-patel

extensions/ql-vscode/.eslintrc.js

@@ -22,6 +22,7 @@ module.exports = {
       },
     ],
     "@typescript-eslint/explicit-function-return-type": "off",
+    "@typescript-eslint/explicit-module-boundary-types": "off",
     "@typescript-eslint/no-non-null-assertion": "off",
     "@typescript-eslint/no-explicit-any": "off",
     "@typescript-eslint/no-floating-promises": [ "error", { ignoreVoid: true } ],