docs: add Tesla to ADOPTERS.md (cloudnative-pg#10396)

Signed-off-by: Alex Klibisz <aklibisz@tesla.com>

Author: alexklibisz

ADOPTERS.md

@@ -74,3 +74,4 @@ This list is sorted in chronological order, based on the submission date.
 | [pgEdge](https://www.pgedge.com) | [@mmols](https://github.com/mmols) | 2025-11-12 | pgEdge uses CloudNativePG to help customers operate Postgres clusters on Kubernetes, powering both single-region and multi-region, active-active deployments with the open source [pgEdge Helm chart](https://github.com/pgEdge/pgedge-helm). Leveraging CloudNativePG’s mature, production-ready operator allows pgEdge to focus on distributed Postgres capabilities while building on a proven foundation for lifecycle management.|
 | [Nutanix NKP](https://www.nutanix.com/products/kubernetes-management-platform) | @tuxtof | 2025-11-19 | Nutanix Kubernetes Platform (NKP) integrates CloudNativePG both for internal services like Harbor or Insight and to give end users a simple, self-service capability to deploy highly available PostgreSQL clusters. This provides enhanced reliability, scalability, and simplified database operations for both platform and users. |
 | [GARR](https://www.garr.it) | [@rizlas](https://github.com/rizlas) | 2026-01-16 | GARR is the Italian National Research and Education Network and a non-profit organization. CloudNativePG enables us to provide vendor-independent, resilient PostgreSQL solutions to our users in research and education institutions. |
+| [Tesla](https://tesla.com) | [@aleksandar-had](https://github.com/aleksandar-had), [@alexklibisz](https://github.com/alexklibisz), [@Sergeo17](https://github.com/Sergeo17) | 2026-03-31 | Tesla uses CloudNativePG to run PostgreSQL clusters as part of several production web services. |