create gitea tofu bot user

iac/providers.tf

@@ -0,0 +1,25 @@
+terraform {
+  required_providers {
+    gitea = {
+      source = "go-gitea/gitea"
+      version = "0.5.1"
+    }
+    vault = {
+      source = "vault"
+      version = "4.4.0"
+    }
+  }
+}
+
+provider "gitea" { # https://registry.terraform.io/providers/go-gitea/gitea/latest/docs
+  base_url = "https://gitea.arcodange.duckdns.org"
+  # use GITEA_TOKEN env var
+}
+
+provider vault {
+  address = "https://vault.arcodange.duckdns.org"
+  auth_login_jwt { # TERRAFORM_VAULT_AUTH_JWT environment variable
+    mount = "gitea_jwt"
+    role = "gitea_cicd"
+  }
+}