Add mbianchidev as BM

Signed-off-by: Vyom-Yadav <[email protected]>

Author: Vyom-Yadav

releases/release-1.34/release-team.md

@@ -8,7 +8,7 @@
 | Communications    | Agustina Barbetta ([@aibarbetta](https://github.com/aibarbetta) / Slack: `@aibarbetta`)                            | TBD                                                                                                                                                                                                                                                                                                                                               |
 | Release Signal    | Rajalakshmi Girish ( [@Rajalakshmi-Girish](https://github.com/Rajalakshmi-Girish) / Slack: `@Rajalakshmi Girish` ) | TBD                                                                                                                                                                                                                                                                                                                                               |
 | Docs              | Michelle Nguyen ([@michellengnx](https://github.com/michellengnx) / Slack: `@Michelle Nguyen`)                     | TBD                                                                                                                                                                                                                                                                                                                                               |
-| Branch Manager    | TBD                                                                                                                | TBD                                                                                                                                                                                                                                                                                                                                               |
+| Branch Manager    | Matteo Bianchi ( [@mbianchidev](https://github.com/mbianchidev) / Slack: `@mbianchidev`)                           | TBD                                                                                                                                                                                                                                                                                                                                               |
 
 Review the [Release Managers page](https://github.com/kubernetes/website/blob/main/content/en/releases/release-managers.md) for up-to-date contact information on Release Engineering personnel.