Update copier command (copier 7.2->9.2)

hello-world/README.md

@@ -14,7 +14,7 @@ Writing a JupyterLab extension usually starts from a configurable template. It
 can be downloaded with the [`copier`](https://copier.readthedocs.io/) tool and the following command:
 
 ```bash
-pip install "copier~=7.2" jinja2-time "pydantic<2.0.0"
+pip install "copier~=9.2" jinja2-time
 mkdir my_extension
 cd my_extension
 copier copy https://github.com/jupyterlab/extension-template .

mimerenderer/README.md

@@ -26,10 +26,10 @@ You will initialize the extension by using [copier](https://copier.readthedocs.i
 Execute the following commands in your terminal:
 
 ```bash
-pip install copier jinja2-time
+pip install "copier~=9.2" jinja2-time
 mkdir my_mimerenderer
 cd my_mimerenderer
-copier https://github.com/jupyterlab/extension-template .
+copier copy --trust https://github.com/jupyterlab/extension-template .
 ```
 
 You will be asked for some basic information that could for example be setup

server-extension/README.md

@@ -22,10 +22,10 @@ Writing a JupyterLab extension usually starts from a configurable template. It
 can be downloaded with the [`copier`](https://copier.readthedocs.io/) tool and the following command for an extension with a server part:
 
 ```bash
-pip install copier jinja2-time
+pip install "copier~=9.2" jinja2-time
 mkdir my_extension
 cd my_extension
-copier https://github.com/jupyterlab/extension-template .
+copier copy --trust https://github.com/jupyterlab/extension-template .
 ```
 
 You will be asked for some basic information that could for example be setup