Update readme to mention v2

Author: volodymyrZotov

README.md

@@ -18,14 +18,14 @@ To install the latest version of the 1Password CLI: \
 
 ```yaml
 - name: Install 1Password CLI
-  uses: 1password/install-cli-action@v1
+  uses: 1password/install-cli-action@v2
 ```
 
 To install the latest beta version (i.e. `latest-beta`) of the 1Password CLI:
 
 ```yaml
 - name: Install 1Password CLI
-  uses: 1password/install-cli-action@v1
+  uses: 1password/install-cli-action@v2
   with:
     version: latest-beta
 ```
@@ -34,9 +34,9 @@ To install a specific version of the 1Password CLI:
 
 ```yaml
 - name: Install 1Password CLI
-  uses: 1password/install-cli-action@v1
+  uses: 1password/install-cli-action@v2
   with:
-    version: 2.18.0
+    version: 2.31.1
 ```
 
 ## ⚙️ Supported Runners