Merge pull request 'feat: add vault hosts' (#41) from neoloc/vault into master

Reviewed-on: #41

data/prodinf01n37.main.unkin.net.yaml

@@ -0,0 +1,4 @@
+---
+classes:
+  - roles::infra::storage::vault
+environment: testing

data/prodinf01n38.main.unkin.net.yaml

@@ -0,0 +1,4 @@
+---
+classes:
+  - roles::infra::storage::vault
+environment: testing

data/prodinf01n39.main.unkin.net.yaml

@@ -0,0 +1,4 @@
+---
+classes:
+  - roles::infra::storage::vault
+environment: testing