docs: recommend offline bcrypt (argoproj#10050) (argoproj#10056)

* docs: recommend offline bcrypt (argoproj#10050)

Signed-off-by: CI <michael@crenshaw.dev>

* add bcrypt example

Signed-off-by: CI <michael@crenshaw.dev>

* note title

Signed-off-by: CI <michael@crenshaw.dev>

docs/faq.md

@@ -43,8 +43,14 @@ per [the getting started guide](getting_started.md). For Argo CD v1.9 and later,
 a secret named `argocd-initial-admin-secret`.
 
 To change the password, edit the `argocd-secret` secret and update the `admin.password` field with a new bcrypt hash.
-You can use a site like [https://www.browserling.com/tools/bcrypt](https://www.browserling.com/tools/bcrypt) to generate
-a new hash. For example:
+
+!!! note "Generating a bcrypt hash"
+    Use a trustworthy, offline `bcrypt` implementation such as the [Python bcrypt library](https://pypi.org/project/bcrypt/) to generate the hash.
+
+        pip3 install bcrypt
+        python3 -c "import bcrypt; print(bcrypt.hashpw(b'YOUR-PASSWORD-HERE', bcrypt.gensalt()).decode())"
+
+To apply the new password hash, use the following command (replacing the hash with your own):
 
 ```bash
 # bcrypt(password)=$2a$10$rRyBsGSHK6.uc8fntPwVIuLVHgsAhAX7TcdrqW/RADU0uh7CaChLa