Add claude slash cmd to update metal3-dev-env hash (#1833)

Author: MahnoorAsghar

.claude/commands/update-metal3-dev-env-hash.md

@@ -0,0 +1,26 @@
+# Update metal3-dev-env Hash
+
+Update the pinned metal3-dev-env commit hash in `01_install_requirements.sh` to the latest commit from the main branch.
+
+## Steps
+
+1. Fetch the latest commit hash from the metal3-dev-env main branch:
+   ```bash
+   git ls-remote https://github.com/metal3-io/metal3-dev-env.git refs/heads/main | cut -f1
+   ```
+
+2. Update the hash in `01_install_requirements.sh` where it says:
+   ```bash
+   git reset <HASH> --hard
+   ```
+
+3. After updating, inform the user of:
+   - The old hash that was replaced
+   - The new hash that was set
+   - Suggest they may want to check the metal3-dev-env changelog for breaking changes
+
+## Important Notes
+
+- The hash is pinned to ensure CI stability and catch breaking changes before they affect everyone
+- When updating, also check if ANSIBLE_VERSION needs to be aligned with the new metal3-dev-env version (see https://github.com/metal3-io/metal3-dev-env/blob/master/lib/common.sh)
+