chore: Add dedicated installer script

We need to get rid of cargo-dist asap since even windows build jobs are
starting to fail (due to GH dropping certain runners). 'cargo-dist' is a
great tool but is abandoned due to the bankruptcy. In the last couple of
month we started getting issues related to lack of updates there, so
prepare the drop.

Author: gtema

.github/workflows/mdbook.yml

@@ -47,6 +47,8 @@ jobs:
         uses: actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b # v5.0.0
       - name: Build with mdBook
         run: mdbook build doc
+      - name: Copy install script
+        run: cp install.sh doc/html
       - name: Upload artifact
         uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3.0.1
         with:

README.md

@@ -139,16 +139,26 @@ with a dedicated installer in every release and can be retrieved with the
 following command:
 
 ```console
-curl --proto '=https' --tlsv1.2 -LsSf https://github.com/gtema/openstack/releases/latest/download/openstack_cli-installer.sh | sh
+curl --proto '=https' --tlsv1.2 -LsSf https://gtema.github.io/openstack/install.sh | sh
 ```
 
 TUI can be installed similarly:
 
 ```console
-curl --proto '=https' --tlsv1.2 -LsSf https://github.com/gtema/openstack/releases/latest/download/openstack_tui-installer.sh | sh
+curl --proto '=https' --tlsv1.2 -LsSf https://gtema.github.io/openstack/install.sh | INSTALLER_TOOL=openstack_tui sh
 ```
 
-### Build locally
+### Build and install using `cargo`
+
+When Rust toolchain is installed it is possible to use it to install the project.
+
+```console
+cargo install openstack_cli
+cargo install openstack_tui
+```
+
+### Build locally directly from sources
+
 Alternatively it is possible to compile project from sources. Since the project
 is a pure `Rust` it requires having a Rust compile suite.