add TEG for enterprise support (#7548)

* add TEG for enterprise support

Signed-off-by: zirain <[email protected]>

* Update site/data/enterprise_support.yaml

Co-authored-by: Arko Dasgupta <[email protected]>
Signed-off-by: zirain <[email protected]>

---------

Signed-off-by: zirain <[email protected]>
Co-authored-by: Arko Dasgupta <[email protected]>

Author: zirain

site/data/enterprise_support.yaml

@@ -1 +1,5 @@
-adopters: []
+adopters:
+  - name: "Tetrate Enterprise Gateway for Envoy"
+    logo: "/logos/tetrate.svg"
+    url: "https://tetrate.io/products/tetrate-enterprise-gateway-for-envoy"
+    description: "TEG (Tetrate Enterprise Gateway for Envoy) offers a hardened and scalable ingress built on open source Envoy Gateway."