chore(types): fix typo in comment (#5815)

Co-authored-by: Nico Domino <yo@ndo.dev>

Author: arnaud-zg

packages/next-auth/src/core/types.ts

@@ -38,10 +38,10 @@ export interface NextAuthOptions {
   providers: Provider[]
   /**
    * A random string used to hash tokens, sign cookies and generate cryptographic keys.
-   * If not specified, it falls back to `jwt.secret` or `NEXTAUTH_SECRET` from environment vairables.
-   * Otherwise it will use a hash of all configuration options, including Client ID / Secrets for entropy.
+   * If not specified, it falls back to `jwt.secret` or `NEXTAUTH_SECRET` from environment variables.
+   * Otherwise, it will use a hash of all configuration options, including Client ID / Secrets for entropy.
    *
-   * NOTE: The last behavior is extrmely volatile, and will throw an error in production.
+   * NOTE: The last behavior is extremely volatile, and will throw an error in production.
    * * **Default value**: `string` (SHA hash of the "options" object)
    * * **Required**: No - **but strongly recommended**!
    *