feat(pulumi): add plugin for Pulumi CLI (#13041)

Co-authored-by: Marc Cornellà <marc@mcornella.com>

plugins/pulumi/README.md

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+# Pulumi
+
+This is an **Oh My Zsh plugin** for the [**Pulumi CLI**](https://www.pulumi.com/docs/iac/cli/),
+an Infrastructure as Code (IaC) tool for building, deploying and managing cloud infrastucture.
+
+This plugin provides:
+
+- 🚀 Short, intuitive aliases for common Pulumi commands
+- 🎯 Auto-completion support for Pulumi
+
+To use it, add `pulumi` to the plugins array in your `.zshrc` file:  
+
+```zsh
+plugins=(... pulumi)
+```
+
+## ⚡ Aliases
+
+| Alias    | Command                | Description                   |
+| -------- | ---------------------- | ----------------------------- |
+| `pul`    | `pulumi`               | Shortcut for Pulumi CLI       |
+| `pulcs`  | `pulumi config set`    | Set Pulumi configuration      |
+| `puld`   | `pulumi destroy`       | Destroy all resources         |
+| `pullog` | `pulumi logs -f`       | Tail Pulumi logs in real-time |
+| `pulp`   | `pulumi preview`       | Show planned changes          |
+| `pulr`   | `pulumi refresh`       | Refresh state from cloud      |
+| `puls`   | `pulumi stack`         | Show stack details            |
+| `pulsh`  | `pulumi stack history` | Show stack history            |
+| `pulsi`  | `pulumi stack init`    | Initialize a new stack        |
+| `pulsl`  | `pulumi stack ls`      | List available stacks         |
+| `pulso`  | `pulumi stack output`  | Show stack outputs            |
+| `pulss`  | `pulumi stack select`  | Switch stack                  |
+| `pulu`   | `pulumi up`            | Deploy infrastructure         |
+
+## 🎯 Autocompletion
+
+If `pulumi gen-completion zsh` is available, this plugin **automatically loads Pulumi auto-completion**.
+
+## 🛠️ Contribution
+
+Feel free to open an issue or PR for improvements! 🚀

plugins/pulumi/pulumi.plugin.zsh

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+if (( ! $+commands[pulumi] )); then
+  return
+fi
+
+# If the completion file doesn't exist yet, we need to autoload it and
+# bind it to `pulumi`. Otherwise, compinit will have already done that.
+if [[ ! -f "$ZSH_CACHE_DIR/completions/_pulumi" ]]; then
+  typeset -g -A _comps
+  autoload -Uz _pulumi
+  _comps[pulumi]=_pulumi
+fi
+
+pulumi gen-completion zsh >| "$ZSH_CACHE_DIR/completions/_pulumi" &|
+
+# Aliases
+alias pul='pulumi'
+alias pulcs='pulumi config set'
+alias puld='pulumi destroy'
+alias pullog='pulumi logs -f'
+alias pulp='pulumi preview'
+alias pulr='pulumi refresh'
+alias puls='pulumi stack'
+alias pulsh='pulumi stack history'
+alias pulsi='pulumi stack init'
+alias pulsl='pulumi stack ls'
+alias pulso='pulumi stack output'
+alias pulss='pulumi stack select'
+alias pulu='pulumi up'