feat(docs-infra): rename tagdef: @experimental to @publicApi (#26595

)

PR Close #26595

aio/tools/transforms/angular-api-package/tag-defs/experimental.js → aio/tools/transforms/angular-api-package/tag-defs/publicApi.js

@@ -1,3 +1,3 @@
 module.exports = function() {
-  return {name: 'experimental'};
+  return {name: 'publicApi'};
 };