Fix wrong extension reference on WebauthN documentation

[pjgg]

Fix wrong documentation reference. test-security-webauthn is a helper more than a extension.
Related to: #29662 fyi @gsmet

[gsmet]

Have you tested if this actually adds the library or if it ignores it?

[pjgg]

Is throwing an error!

quarkus create app org.acme:security-webauthn-quickstart \
    --extension='security-webauthn,reactive-pg-client,resteasy-reactive,hibernate-reactive-panache,test-security-webauthn' \
    --no-code
Looking for the newly published extensions in registry.quarkus.io
[ERROR] ❗  Cannot find a dependency matching 'test-security-webauthn', maybe a typo?
[ERROR] ❗  Unable to create project: Failed to create project because of invalid extensions

[pjgg]

Same if you try to add the library later on:

quarkus extension add 'test-security-webauthn'
[ERROR] ❗  Nothing installed because keyword(s) 'test-security-webauthn' were not matched in the catalog.

[pjgg]

but... I like your idea of ignore those dependencies that are not in the catalog!. Maybe if an extension is not in the catalog we could just write a warning message but create the app with those deps that are right.

[gsmet]

Could you try adding quarkus-test-security-webauthn instead?

I think it's better to keep it an error so if not working at all, I will merge your patch.

[pjgg]

Could you try adding quarkus-test-security-webauthn instead?

Same issue with quarkus-test-security-webauthn

[gsmet]

TBH, even if it works, I think it's better to remove it so let's merge your patch.

[gsmet]

Thanks!