[js] Update cddl to 0.21.0 to fix quoted reserved-word parsing in BiDi codegen

Author: titusfortner

javascript/selenium-webdriver/package.json

@@ -30,8 +30,8 @@
   },
   "devDependencies": {
     "@eslint/js": "^10.0.1",
-    "cddl": "^0.20.1",
-    "cddl2ts": "^0.9.1",
+    "cddl": "^0.21.0",
+    "cddl2ts": "^0.10.0",
     "clean-jsdoc-theme": "^4.3.2",
     "eslint": "^10.5.0",
     "eslint-config-prettier": "^10.1.8",

javascript/selenium-webdriver/project_bidi_schema.mjs

@@ -92,11 +92,6 @@ function projectRef(type) {
   // catches it instead of silently producing a valid-looking `null`.
   if (all.length === 0) return { primitive: 'unknown' }
   const entries = all.filter((e) => !isNullAlt(e))
-  // The only sole-`null` field in the spec is NullValue.type, whose CDDL source is
-  // the quoted string literal "null" (its discriminator tag); the cddl parser strips
-  // the quotes, collapsing it to the bareword null type. Genuine nullability is
-  // always `X / null` (handled below), so a sole null here is that string tag.
-  if (entries.length === 0) return { const: 'null' }
   const node =
     entries.length > 1
       ? entries.every(isLiteral)

javascript/selenium-webdriver/project_bidi_schema_test.mjs

@@ -226,16 +226,16 @@ describe('unionSelector', () => {
       union('x.Value', ['x.Prim', 'x.Date', 'x.Reference']),
       union('x.Prim', ['x.StringValue', 'x.NullValue']),
       recAst('x.StringValue', 'string'),
-      { ...recAst('x.NullValue', null), Properties: [field('type', ['null'])] },
+      recAst('x.NullValue', 'null'),
       recAst('x.Date', 'date'),
       group('x.Reference', [field('refId', ['text'])]),
     ]
     const s = projectSchema(ast, {})
     const sel = s.types['x.Value'].selector
     assert.equal(sel.by, 'type')
     assert.equal(sel.default, 'x.Reference')
-    // A sole bareword `null` field is the quoted string tag "null", not the JSON
-    // null type, so NullValue dispatches on the string "null" (not JSON null).
+    // NullValue's `type` is the string literal "null" (its discriminator tag), so it
+    // dispatches on the string "null" — not the JSON null type.
     assert.deepEqual(s.types['x.NullValue'].fields[0].type, { const: 'null' })
     assert.deepEqual(
       new Map(sel.variants.map((v) => [JSON.stringify(v.value), v.ref])),