Add acme_contact to test config TOML strings

The main code changes were already committed (3f2550f), but test config
TOML strings in cli.rs, admin/socket.rs, shutdown.rs, and
integration_test.rs still needed the new acme_contact field to pass
validation rule 19.

src/admin/socket.rs

@@ -422,6 +422,7 @@ mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme-cache"
 acme_directory = "staging"
+acme_contact = "mailto:admin@test.local"
 
 [[listeners.sites]]
 host = "test.local"
@@ -563,6 +564,7 @@ mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme-cache"
 acme_directory = "staging"
+acme_contact = "mailto:admin@test.local"
 
 [[listeners.sites]]
 host = "test.local"

src/cli.rs

@@ -274,6 +274,7 @@ https_port = 443
 mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme"
+acme_contact = "mailto:admin@test.local"
 "#;
         let config_path = dir.path().join("config.toml");
         std::fs::write(&config_path, toml).unwrap();
@@ -311,6 +312,7 @@ https_port = 443
 mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme"
+acme_contact = "mailto:admin@test.local"
 "#;
         let config_path = dir.path().join("config.toml");
         std::fs::write(&config_path, toml).unwrap();
@@ -367,6 +369,7 @@ https_port = 443
 mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme"
+acme_contact = "mailto:admin@test.local"
 "#;
         let config_path = dir.path().join("config.toml");
         std::fs::write(&config_path, toml).unwrap();

src/shutdown.rs

@@ -198,6 +198,7 @@ mode = "acme"
 acme_domains = ["test.local"]
 acme_cache_dir = "/tmp/acme-cache"
 acme_directory = "staging"
+acme_contact = "mailto:admin@test.local"
 
 [[listeners.sites]]
 host = "test.local"

src/tls/acceptor.rs

@@ -209,4 +209,4 @@ mod tests {
         let err = result.unwrap_err().to_string();
         assert!(err.contains("unknown TLS mode"));
     }
-}
+}