feat(ci): maintain CLI version number (#831)

Author: davidkonigsberg

.github/workflows/update-versions.yml

@@ -30,6 +30,8 @@ jobs:
         run: curl -s "https://registry.hub.docker.com/v2/repositories/fernapi/fern-swift-sdk/tags" | jq -r -j '[.results[] | select(.name != "latest")] | .[0].name' > fern/snippets/version-number-swift.mdx
       - name: update-postman-version
         run: curl -s "https://registry.hub.docker.com/v2/repositories/fernapi/fern-postman/tags" | jq -r -j '[.results[] | select(.name != "latest")] | .[0].name' > fern/snippets/version-number-postman.mdx
+      - name: update-cli-version
+        run: curl -s https://api.github.com/repos/fern-api/fern/releases/latest | jq -r -j '.tag_name' > fern/snippets/version-number-cli.mdx
       - name: create PR
         id: cpr
         uses: peter-evans/create-pull-request@v7