Fix HCaptchaFieldWidget location to work in all plone.formwidget.hcaptcha versions.

In plone/plone.formwidget.hcaptcha#25 ``widget.py`` was moved to ``browser/widget.py``.
It seems we can always get the ``HCaptchaFieldWidget`` class from the `__init__.py`` file though.

Sample [test failure on GitHub Actions](https://github.com/collective/collective.easyform/actions/runs/28085338020/job/83149843124#step:5:379):

```
File ".../src/collective/easyform/browser/widgets.zcml", line 136.4-141.10
zope.configuration.interfaces.InvalidToken:
ImportError:
Couldn't import plone.formwidget.hcaptcha.widget,
No module named 'plone.formwidget.hcaptcha.widget'
in 'plone.formwidget.hcaptcha.widget.HCaptchaFieldWidget'
```

Author: mauritsvanrees

news/+7a14b16f.bugfix.rst

@@ -0,0 +1,2 @@
+Fix ``HCaptchaFieldWidget`` location to work in all ``plone.formwidget.hcaptcha`` versions.
+[maurits]

src/collective/easyform/browser/widgets.zcml

@@ -134,7 +134,7 @@
   </configure>
   <configure zcml:condition="installed plone.formwidget.hcaptcha">
     <adapter
-        factory="plone.formwidget.hcaptcha.widget.HCaptchaFieldWidget"
+        factory="plone.formwidget.hcaptcha.HCaptchaFieldWidget"
         provides="z3c.form.interfaces.IFieldWidget"
         for="collective.easyform.interfaces.IHCaptcha
              *"