Provisioning: Add user token to git and bitbucket repository specs (#108186)

* Add token user to git and bitbucket specs

* Use token user if available in git type

pkg/tests/apis/openapi_snapshots/provisioning.grafana.app-v0alpha1.json

@@ -2597,6 +2597,10 @@
             "description": "Token for accessing the repository. If set, it will be encrypted into encryptedToken, then set to an empty string again.",
             "type": "string"
           },
+          "tokenUser": {
+            "description": "TokenUser is the user that will be used to access the repository if it's a personal access token.",
+            "type": "string"
+          },
           "url": {
             "description": "The repository URL (e.g. `https://bitbucket.org/example/test`).",
             "type": "string"
@@ -2782,6 +2786,10 @@
             "description": "Token for accessing the repository. If set, it will be encrypted into encryptedToken, then set to an empty string again.",
             "type": "string"
           },
+          "tokenUser": {
+            "description": "TokenUser is the user that will be used to access the repository if it's a personal access token.",
+            "type": "string"
+          },
           "url": {
             "description": "The repository URL (e.g. `https://github.com/example/test.git`).",
             "type": "string"