build: bump .nvmrc version

`@typescript-eslint/[email protected]` requires at least `14.17.0`, so our current `.nvmrc` isn't up to date enough.

```
$ yarn --frozen-lockfile                                                                                                                                                                (master|✔)
yarn install v1.22.17
[1/5] Validating package.json...
[2/5] Resolving packages...
[3/5] Fetching packages...
error @typescript-eslint/[email protected]: The engine "node" is incompatible with this module. Expected version "^12.22.0 || ^14.17.0 || >=16.0.0". Got "14.16.1"
error Found incompatible module.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
```

(cherry picked from commit a750203)

Author: dgp1130

.nvmrc

@@ -1 +1 @@
-14.16.1
+14.17.0