Add PolyAPI to ADOPTERS.md (#1739)

Author: dprotaso

ADOPTERS.MD

@@ -32,6 +32,7 @@ If you would like to be included in this table, please open [an issue](https://g
 | ManoMano*                            |                                                                      | Development & Production | [link](https://www.manomano.es/)                                         |
 | Optum*                               |                                                                      | Production               | [link](https://optum.com/)                                               |
 | Posit Software, PBC*                 | Posit Connect Cloud                                                  | Production               | [link](https://connect.posit.cloud/)                                     |
+| PolyAPI                              | PolyAPI                                                              | Production               | [link](https://polyapi.io/)                                              |
 | Red Hat                              | Red Hat OpenShift Serverless                                         | Generally Available      | [link](https://www.openshift.com/learn/topics/serverless)                |
 | Run:ai                               | Run:ai Platform                                                      | Production               | [link](https://www.run.ai)                                               |
 | Scaleway*                            |                                                                      | Production               | [link](https://www.scaleway.com/en)                                      |